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  4. Spectrometer accessories Optical fiber connection attenuator that can vary the light intensity to neutral Fiber connection attenuator (Tokyo Instruments, Inc)
Spectrometer accessories Optical fiber connection attenuator that can vary the light intensity to neutral Fiber connection attenuator-Fiber connection attenuator
Spectrometer accessories Optical fiber connection attenuator that can vary the light intensity to neutral Fiber connection attenuator-Tokyo Instruments, Inc

Spectrometer accessories Optical fiber connection attenuator that can vary the light intensity to neutral Fiber connection attenuator
Tokyo Instruments, Inc

Tokyo Instruments, Inc's Response Status

Response Rate

100.0%

Response Time

23.6hours

Relatively Fast Response

About This Product

■Product overview

This product is a variable attenuator suitable for spectroscopic measurements using fiber multichannel spectrometers such as Stellanet. Stepless dimming is possible by simply connecting the optical fibers on the input and output sides and turning the iris diaphragm on the main unit. Compared to using an optical ND filter, the compatible wavelength range is wider and the difference in transmittance between wavelengths is smaller. Due to stepless dimming, it is possible to fine-tune the light intensity while viewing the spectrum. Additionally, a 25mm diameter optical filter can be installed, allowing the use of long-pass filters to cut secondary light or excitation light.

■Neutral dimming in a wide wavelength range

When performing spectroscopic measurements such as transmittance measurements, the light may be too strong to perform measurements. A common countermeasure is to use an ND filter to reduce the light, but ND filters have a fixed transmittance and cannot be used to finely adjust the light intensity. Circular variable ND filters are expensive and may require adjustments to the optical system. These optical filters have a limited usable wavelength range. On the other hand, this attenuator dedicated to optical fiber connections adjusts the amount of light from the input fiber using the iris diaphragm on the main unit, and then enters the output fiber. There is no need to adjust the optical system as it enters and exits from the fiber. In addition, the light attenuation range can be adjusted steplessly, and moreover, compared to optical filters, it is possible to uniformly attenuate light over a wider wavelength range.

■Optical filters can be added

A 25mm diameter (or 25.4mm diameter) optical filter can be added to the attenuator. Optical filters necessary for spectroscopic measurements can be freely installed, such as adding a secondary light cut filter, narrowing the excitation light band with a bandpass filter, and uniformizing the white light intensity with a color filter or balance filter.

■Supported wavelengths

There are two types: UV to VIS (approximately 200 to 1,000 nm or more) and VIS to NIR (approximately 380 to 2,300 nm). Change the optical elements used in the main body according to the wavelength used. Note that the transmittance for each wavelength varies depending on the model. Also, adding this attenuator will always reduce the light intensity compared to the original light intensity.

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    Spectrometer accessories Optical fiber connection attenuator that can vary the light intensity to neutral Fiber connection attenuator

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1 Models of Spectrometer accessories Optical fiber connection attenuator that can vary the light intensity to neutral Fiber connection attenuator

Image Part Number Price (excluding tax)
Spectrometer accessories Optical fiber connection attenuator that can vary the light intensity to neutral Fiber connection attenuator-Part Number-Fiber connection attenuator

Fiber connection attenuator

Available upon quote

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About Company Handling This Product

Tokyo Instruments, Inc

Response Rate

100.0%

Response Time

23.6hrs

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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