Angle Tunable Type Wavelength Tunable Filter Module：TFA

Wavelength can be tuned by changing the angle of an oxide dielectric bandpass filter. This module rotates oxide dielectric bandpass filters with a micrometer to control wavelength.  

Slide Tunable Type Wavelength Tunable Filter Module：WTFA

 Tune arbitrary wavelengths by changing positions of oxide dielectric type filters of which the thickness is precisely distributed in parallel to the substrate surface.

Rack Type Wavelength Tunable Filter Unit：RTFA

Wavelength can be tuned by changing the angle of an oxide dielectric bandpass filter. This module rotates oxide dielectric bandpass filters with a micrometer to control wavelength.

This 2-port transmission type optical modules has a slot where exchangeable filter cassette(FC) is to be inserted and has tunable center wavelength of its pass band. The center wavelength is continuously and finely tunable in the tuning range of 20nm. Wavelength range changes according to the optical filter mounted on the FC.

This wavelength-tunable filter module has two slots where exchangeable filter cassettes (FCs) are to be inserted.
Optical characteristics of the module are arbitrarily formed by selecting two optical filters. The wavelength tuning range of this module is the same as the one of TFM but FWHM and rejection are improved by combining two optical filters.

Optical filters are mounted on this small component to be used in TFM or WTFM. The cutomers can select the appropriate characteristics for their needs, and also can request the customized characteristics when there is no suitable optical filter in our stock. We will offer the specifications that suit for the customers demands.

This small, built-in type wavelength-tunable filter module has the wavelength tuning range of 5nm. The optical characteristics of the module are customized according to the customers requests. The customer can adjust the optical characteristics after building in this module into their equipment.

This small, built-in type optical filter module has the fixed pass band. The optical characteristics of the module are customized in accordance with the customers requests. We mount the optical filter and adjust its optical characteristics according to the customers requests.

TMUX, 3 port tunable filter for ADD/DROP

This 3-port transmission/reflection filter module has tunable reflection wavelength and applicable to wavelength-tunable multiplexer/demultiplexer for ADD/DROP application.
Wavelength tuning range is 10nm. Transmitting and reflected light is simultaneously tunable.

ITF-201A can tune the wavelength and the full with at half maximum(FWHM) respectively.We have achieved extremely wide tuning range over 100nm(*) using high quality optical filter we developped by ourselves.
This product can be used not only as a tunable BPF but also as a tunable LPF/SPF by changing the operation mode.（*50nm for 1064nm-Band Model）

Customized Modules

Actual Achievement
• Optical modules for combination and split of light
• 3-port (combination of 2 light) module
• 4-port (combination of 3 light) module
• 5-port (combination of 4 light) module
• 6-port (combination of 5 light) module
• Optical branchng module Branching ratio 50:50
• Polarization split/combination module
• Variable optical delay device Amount of delay ～1nsec
• LD-Optical fiber coupling module
• PD-Optical fiber coupling module
• The measurement by using optical fiber jig unit

1um-band Optical Filter Module is a small-sized fiber optic filter module which has exellent power durability and low insertion loss. This new product inherited easy-customized features from our traditional products such as ILF, and gained the applicability to the high power laser equipments including fiber laser oscillator.