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  4. Low stray light, SC light source with excellent wavelength purity, variable filter for laser light source High performance laser line tunable filter (Tokyo Instruments, Inc)
Low stray light, SC light source with excellent wavelength purity, variable filter for laser light source High performance laser line tunable filter-CONTRAST VIS
Low stray light, SC light source with excellent wavelength purity, variable filter for laser light source High performance laser line tunable filter-Tokyo Instruments, Inc

Low stray light, SC light source with excellent wavelength purity, variable filter for laser light source High performance laser line tunable filter
Tokyo Instruments, Inc

Tokyo Instruments, Inc's Response Status

Response Rate

100.0%

Response Time

30.7hours

Relatively Fast Response

About This Product

■High performance laser line tunable filter overview

Photon etc's LLTF CONTRAST™ is a narrow wavelength tunable bandpass filter using a volume transmission grating (Volume Bragg Grating, VBG). With a high damage threshold, it is ideal for wavelength selection of supercontinuum light sources and ASE light removal of Ti:sapphire lasers.

■Features

・Band width variable from 0.15 to 5 nm ・Transmission wavelength range 400nm to 2.3μm ・Peak transmittance approximately 60% ・Low stray light ・Excellent wavelength purity

■Excellent wavelength purity

A diagram showing the out-of-band rejection characteristics of the volume holographic grating at c=632 nm. The 45 nm band is shown, and an out-of-band rejection rate of -60 dB is obtained.

■Fiber adapter (for input/output)

This is an adapter for inputting light from a fiber to LLTF or outputting light from LLTF to a fiber. Fine adjustments can be made using the XYZ axis adjustment mechanism.

■Adjustment kit

A tool for quickly and easily aligning the laser beam to the LLTF without using a fiber. Two irises accurately determine the laser incidence angle and axis. The iris is removable along with the post.

■Harmonic filter

This is a filter for cutting secondary light within LLTF. For example, when outputting light in the 800 to 1,000 nm range from LLTF, a harmonic filter is used to cut the secondary light component in the 400 to 500 nm range. ・For VIS 400-500nm ・For SWIR 500-850nm and/or 850-1,250nm ・For EXT-IV 400~500nm and/or 500~850nm and/or 850~1,150nm

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    Low stray light, SC light source with excellent wavelength purity, variable filter for laser light source High performance laser line tunable filter

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1 Models of Low stray light, SC light source with excellent wavelength purity, variable filter for laser light source High performance laser line tunable filter

Image Part Number Price (excluding tax) Transmission range (nm) Adjustment kit Maximum average input Dimensions (WxHxL) Incident beam diameter Positional stability Suppression rate for center wavelength Fiber output Peak transmittance Bandwidth (FWHM) Harmonic filter Tuning speed (ms) Damage threshold O.D. Enhance SWIR
Low stray light, SC light source with excellent wavelength purity, variable filter for laser light source High performance laser line tunable filter-Part Number-CONTRAST VIS

CONTRAST VIS

Available upon quote

400~1,000nm

Adjustment mechanism for free space

HP8 (up to 8W) HP20 (up to 20W, please consult)

160x170x230mm

<5mm

< 0.5mm (@1m distance from exit port)

< -60dB@±40nm < -30dB@±10nm (typical value)

Fiber coupler with XYZ adjustment mechanism

65%

1.5~2.5nm

Blocks secondary light of 400~500nm

20ms (0.2nm step or less) 25ms (1nm step) 28ms (2nm step) 35ms (5nm step) 50ms (10nm step)

< 5GW/cm2 peak power @1,064 nm, 8ns

> OD6 (@1,064 nm)

N/A

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About Company Handling This Product

Tokyo Instruments, Inc

Response Rate

100.0%

Response Time

30.7hrs

Company Overview

Tokyo Instruments, Inc., established in 1981, and headquartered in Tokyo, Japan, is a manufacturer of opto-ele...

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  • Japan

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