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This section provides an overview for dfb lasers as well as their applications and principles. Also, please take a look at the list of 20 dfb laser manufacturers and their company rankings. Here are the top-ranked dfb laser companies as of December, 2024: 1.G&H, 2.Finisar, 3.NTT Electronics.
Table of Contents
A Distributed Feedback (DFB) laser is a type of laser diode that produces a stable output wavelength. This stability is achieved by incorporating diffraction gratings at the boundaries of the diode layers, which amplify and emit only the light wavelength that matches twice the distance between the gratings. Unlike standard laser diodes, DFB lasers maintain a consistent wavelength regardless of current changes, operating environment, or modulation.
DFB lasers are primarily used in high-capacity, long-distance optical communications due to their ability to maintain stable output at a constant wavelength under various conditions. They are also employed in medical endoscopy, Raman spectroscopy, wavelength conversion, and gas testing. When selecting DFB lasers, factors such as allowable current, output wavelength, connection terminals, operating environment, and size should be considered.
DFB lasers consist of a p-type cladding layer, an n-type cladding layer, and an active layer sandwiched between them. During operation, forward voltage applied through the electrodes causes electron and hole recombination in the active layer, emitting light. This light is selectively amplified by the diffraction grating to produce a single wavelength output.
DFB lasers exhibit stable wavelengths with minimal temperature variation. Generally, the wavelength gradient is approximately 0.1 nm/℃. The oscillation wavelength is controlled by the grating period and temperature gradient. Efforts are underway to develop cost-effective, low-current DFB lasers that do not require external temperature control, using new materials and packaging methods.
In long-distance optical communications, wavelengths like 1550 nm are chosen for their low loss in optical fibers. This wavelength is particularly favored for long-wavelength DFB lasers. Other 1550 nm lasers include λ/4 phase-shifted grating DFB lasers and DBR lasers with gratings positioned away from the active layer.
Fabry-Perot (FP) lasers, another type of semiconductor laser, are often compared with DFB lasers. The main difference is FP lasers' difficulty in achieving single-mode oscillation. FP lasers are used in CD/DVD optical pickups, laser printers, and similar applications.
*Including some distributors, etc.
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RPMC Lasers, Inc. is an OEM laser supplier founded in 1996 and based in Missouri, USA. The company offers various laser technology products for the photonics industry. These products include fiber or solid-state optical laser amplifiers, wide wavelength laser diodes, and pulsed lasers. It also offers related accessories such as thin disc mount modules and heatsinks, as well as product customization for customers with unique project specifications. The company's products support client manufacturers in the medical, defense and research sectors.
Finisar Corporation is a manufacturer of optical communication components and subsystems. The company was founded in April 1987 and situated at Sunnyvale, California. The company is a global technology company in optical communications. Its products enable high-speed voice, video, and data communications for networking, storage, wireless, and cable TV applications. The company has created solutions in optics technology and supplied system manufacturers with production volume for network bandwidth. The company develops a product line primarily for telecommunications, using EY-amplification technologies including erbium-doped fiber amplification, Raman amplification, and dynamic hybrid amplification.
EMCORE, founded in 1984 and headquartered in Alhambra, California, is a manufacturer specializing in inertial navigation products. Their product line includes fiber optic, ring laser gyro, and MEMS technologies, which are utilized in various navigation applications. These products serve as crucial components in the development of inertial navigation systems, enhancing accuracy and performance. Their navigation and sensing solutions find application across diverse industries, including commercial, industrial, multi-modal, and space sectors. EMCORE maintains ISO 9001 quality management certification, while their facilities in Budd Lake and Concord are AS9100 aerospace quality certified.
Keysight Technologies, Inc. was founded in 1939 and headquartered in Santa Rosa, California. Keysight is a global developer and manufacturer of electronic design and test solutions to communications, networking, aerospace, defense, and government, automotive, energy, semiconductor, electronic, and education industries. Keysight’s communications solutions group solutions include electronic design automation software; radio frequency and microwave test solutions, hardware and virtual network test platforms and software applications, as well as optical laser source solutions. Keysight’s electronic industrial solutions group offers various design tools and verification tools. Keysight offers product support, technical support, and training and consulting services. It sells its products through direct sales force, distributors, resellers, and manufacturer's representatives.
AeroDiode is a company founded in 2016. Headquartered in Carlsbad, California, USA, the company is a supplier of laser diodes and modules for various industries. AeroDiode offers a diverse range of laser products, including diodes, modules, and drivers. These products are widely used in applications such as industrial manufacturing, scientific research, and medical procedures. The company also provides technical support services, with comprehensive product information and customer services to meet the specific needs of its customers.
Alpes Lasers, founded in 1998 and headquartered in the Canton of Neuchâtel, Switzerland, is a manufacturer of semiconductor lasers. The company produces a wide range of laser sources, including quantum cascade lasers, interband cascade lasers, and laser diodes. These lasers cover a broad range of the electromagnetic spectrum and are used in various applications such as scientific research, medical imaging, and communication systems. Alpes Lasers also offers packaging solutions for their laser products, which are integral to their manufacturing process to ensure protection, electrical connections, thermal management, and integration of laser devices.
TOPTICA Photonics Inc. is a manufacturer and supplier of lasers and laser-based systems used in scientific and industrial applications. Founded in 1998 and is headquartered in Rochester, New York, with additional locations in Germany, China, Japan, and Korea. Their product portfolio includes diode lasers, ultrafast fiber lasers, frequency combs, and terahertz systems. These products are used in a wide range of applications, such as quantum technology, spectroscopy, microscopy, semiconductor metrology, and material processing. One of their notable products is the FemtoFiber ultra 920, an ultrafast fiber laser with a wavelength of 920 nm, used in spectroscopy and microscopy applications.
Eblana Photonics, founded in 2001 and located in Dublin, Ireland, is a manufacturer that specializes in the design and production of Laser Diodes. The company’s range of product lines includes discrete mode, narrow linewidth, high-Power DM, fabry-perot, and gain chips. These products are used for precise and stable spectral emission, high-power applications, and laser-based systems. The products provided by Eblana Photonics cater to a range of industries and applications, including telecommunications, gas sensing, laser pumping, fiber optic communications, and optical coherence tomography.
EXFO is a Quebec, Canada-based developer and manufacturer of analytics solutions for network equipment manufacturers, communications service providers, and data centers. Originally founded in 1985, the company provides solutions for clients to more easily transition to 5G, fiber optic, and cloud-native networking. The company's specialized product lineup includes lab and manufacturing testing equipment such as bit error rate testers (BERTs), waveform generators, and optical modulation analyzers, as well as field network testing tools like fiber inspection probes and optical power meters (OPMs). These supply clients like Nokia, Facebook, and the U.S. Department of Defense.
Mitsubishi Electric was established in Japan in 1921 and headquartered in Tokyo. The company’s Semiconductors & Devices division is a manufacturer of products serving several industries ranging from home appliances and automotive to renewable energy and optical fiber communication. The company’s products are divided into 4 product segments: power devices, high-frequency devices, optical devices, and infrared sensors. Power devices encompass motion controls, most home appliances, and SiC applications. High-frequency devices include satellite communications systems, radios, and base transceiver stations. Optical devices include projector light sources and optical fiber communication. Infrared sensing systems include MeIDIR thermal sensors.
Anritsu Corporation, established in 1931 and based in Atsugi, Japan, is a manufacturer of electronic measuring instruments, quality assurance systems, and Information and Telecommunication equipment and devices. Its test and measurement products include power meters, power sensors, and conformance test systems, while X-ray inspection systems, metal detectors, and checkweighers ensure food safety and security. Other products like instrumentation-grade adapters and optical sensing equipment are used in IT. The company’s stock was listed in the 2nd section of the Tokyo Stock Exchange in 1961, and in 1968, it was listed in the 1st section.
G&H, established in 1983 and headquartered in Edinburgh, UK, is a manufacturer of photonic components, modules, and systems. The company specializes in acousto-optics, fiber optics, electro-optics, precision optics, and crystal optics. Its product and service range includes photonic components, modules, and systems. G&H has over 200 employees and operates in more than 20 countries. The company's products are used in a wide variety of applications, including telecommunications, medical imaging, aerospace, defence and industrial automation.
ALPHALAS GmbH is a manufacturer and supplier of lasers, optics, and laser-related electronics for education and research applications founded in 1997 by Prof. Dr. Krassimir Stankov and headquartered in Goettingen, Germany. The company’s product portfolio includes lasers, laser diodes & TEC drives, laser diagnostic tools, laser components & accessories, and polarization optics. Its laser portfolio included mode-locked, CW, and Q-switched diode-pumped solid-state lasers. in short pulses (subnanosecond, picosecond, and femtosecond) and microchip design. The company is also a service provider offering laser custom design & custom solutions, consulting, and contract research & development.
Frankfurt Laser Company, founded in 1994 and located in Friedrichsdorf, Germany, is a supplier of FP, DFB, and DBR laser diodes. The company offers a range of products that include laser diodes, superluminescent diodes, laser illuminators, laser modules, and optics. They are used for laser-based applications, optical imaging, lighting, and optical system integration. The products offered by Frankfurt Laser Company cater to a range of industries and applications, including telecommunications, medical, industrial, entertainment, and optical sensing.
RP Photonics was established in 2004 in Zürich, Switzerland as a supplier of digital marketing, software, and technical consulting in photonics. They provide online platforms for education and information with RP Photonics Encyclopedia which has over 1000 articles as an open online resource about photonics, and the RP Photonics Buyer’s Guide lists the suppliers for related products. Their Consultancy helps with product designing, problem-solving, and training for Lasers and Amplifiers, Nonlinear optics, Fiber Optics, Ultrashort Pulses, and Energy whereas their Software designing has products such as RP Fiber Calculator, Resonator, Q-Switch, etc. that are applicable in laser and medical device manufacturing.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | G&H |
10.3%
|
| 2 | Finisar |
9.0%
|
| 3 | EXFO |
8.6%
|
| 4 | NTT Electronics |
7.7%
|
| 5 | RPMC Lasers, Inc. |
6.9%
|
| 6 | Mitsubishi Electric Corporation |
6.0%
|
| 7 | Keysight Technologies |
6.0%
|
| 8 | EMCORE |
5.6%
|
| 9 | Aerodiode |
5.2%
|
| 10 | Anritsu |
5.2%
|
Derivation Method
The ranking is calculated based on the click share within the dfb laser page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
6 | 35.3% |
|
Japan
|
4 | 23.5% |
|
Germany
|
3 | 17.6% |
|
Canada
|
2 | 11.8% |
|
Switzerland
|
1 | 5.9% |
|
Ireland
|
1 | 5.9% |
45 products found
45 products
QD Laser Co., Ltd.
370+ people viewing
Last viewed: 20 hours ago
Fast Response
■Summary The QLD0593 series is a compact visible laser with wavelengths of 532nm, 561nm, and 594nm. Diode-pumped solid-state lasers (DPSS lasers) a...
6 models listed
QD Laser Co., Ltd.
410+ people viewing
Last viewed: 10 hours ago
Fast Response
■Summary The QLD0593 series is a compact visible laser with wavelengths of 532nm, 561nm, and 594nm. Diode-pumped solid-state lasers (DPSS lasers) a...
7 models listed
QD Laser Co., Ltd.
260+ people viewing
Last viewed: 2 hours ago
Fast Response
■Summary The QLD0593 series is a compact visible laser with wavelengths of 532nm, 561nm, and 594nm. Diode-pumped solid-state lasers (DPSS lasers) a...
2 models listed
QD Laser Co., Ltd.
300+ people viewing
Last viewed: 3 hours ago
Fast Response
■Summary The QLD1x6x series is a high power single mode DFB laser with wavelengths of 1,018nm - 1,122nm, 1,172nm - 1,188nm. The package is a standa...
3 models listed
Seven Six Co., Ltd.
650+ people viewing
Last viewed: 12 hours ago
DFB laser of semiconductor laser diode.
4 models listed
QD Laser Co., Ltd.
190+ people viewing
Last viewed: 2 hours ago
Fast Response
■Summary The QLD1x6x series is a high power single mode DFB laser with wavelengths of 1,018nm - 1,122nm, 1,172nm - 1,188nm. The package is a standa...
QD Laser Co., Ltd.
150+ people viewing
Last viewed: 3 hours ago
Fast Response
■Summary The QLD1x6x series is a high power single mode DFB laser with wavelengths of 1,018nm - 1,122nm, 1,172nm - 1,188nm. The package is a standa...
QD Laser Co., Ltd.
30+ people viewing
Fast Response
This is an all-in-one unit with a built-in small visible laser and driver. Despite its ultra-compact size of 53cc (38 x 62 x T22.5mm), it is plug-a...
QD Laser Co., Ltd.
200+ people viewing
Last viewed: 1 day ago
Fast Response
■Summary The QLD1x6x series is a high power single mode DFB laser with wavelengths of 1,018nm - 1,122nm, 1,172nm - 1,188nm. The package is a standa...
QD Laser Co., Ltd.
190+ people viewing
Last viewed: 3 hours ago
Fast Response
■Summary The QLD1x6x series is a high power single mode DFB laser with wavelengths of 1,018nm - 1,122nm, 1,172nm - 1,188nm. The package is a standa...
QD Laser Co., Ltd.
230+ people viewing
Last viewed: 3 hours ago
Fast Response
■Summary The QLD1x6x series is a high power single mode DFB laser with wavelengths of 1,018nm - 1,122nm, 1,172nm - 1,188nm. The package is a standa...
3 models listed
QD Laser Co., Ltd.
160+ people viewing
Last viewed: 5 hours ago
Fast Response
■Summary The QLD1x6x series is a high power single mode DFB laser with wavelengths of 1,018nm - 1,122nm, 1,172nm - 1,188nm. The package is a standa...
QD Laser Co., Ltd.
180+ people viewing
Last viewed: 1 day ago
Fast Response
■Summary The QLD1x6x series is a high power single mode DFB laser with wavelengths of 1,018nm - 1,122nm, 1,172nm - 1,188nm. The package is a standa...
QD Laser Co., Ltd.
170+ people viewing
Last viewed: 4 hours ago
Fast Response
■Summary The QLD1x6x series is a high power single mode DFB laser with wavelengths of 1,018nm - 1,122nm, 1,172nm - 1,188nm. The package is a standa...
QD Laser Co., Ltd.
250+ people viewing
Last viewed: 3 hours ago
Fast Response
■Summary The QLD1x6x series is a high power single mode DFB laser with wavelengths of 1,018nm - 1,122nm, 1,172nm - 1,188nm. The package is a standa...
2 models listed
Kokyo Co., Ltd.
230+ people viewing
Last viewed: 44 minutes ago
Fast Response
■Features ・Built-in DFB-LD module with wavelengths compatible with 100GBASE-ER4 (1,295.56nm, 1,300.05nm, 1,304.58nm, 1,309.14 nm) ・We can also sp...
Japan Laser Co., Ltd.
290+ people viewing
Last viewed: 15 hours ago
Standard Response
Narrow line width & low noise. DFB laser based longitudinal mode single single frequency laser. Koheras single frequency lasers are single longitud...
8 models listed
![Quantum cascade laser QCL (DFB: distributed feedback type) [Pulsed/CW emission]-IR System Co., Ltd.](https://metoree.s3.ap-northeast-1.amazonaws.com/img/products-new/30035962024080543.png)
IR System Co., Ltd.
30+ people viewing
Last viewed: 1 day ago
Quantum Cascade Laser (QCL). We have a wide lineup with center wavelength: 3 to 16 µm (wave number: 2,950 to 600 cm-1). In addition to bare chips a...
