Tunable wavelength filter exchangable module TFM

The tunable filter module with an exchangeable cassette type filter.

TFM/FC

The filter characteristics of this module can be changed by exchanging the filter cassette.
A fine tuning of wavelength, with tunable range of 20nm, is achieved by rotating the filter.
The tuning mechanism employs a micrometer for an accurate wavelength adjustment.

Specification

Standard	TFM	Model Name	Wave length(nm)	Fiber	Loss(dB)	Size(mm)
		TFM-1550-S-FA	1510-1590	SMF	≤ 0.7	L48W43H34 Connector: FC/APC
		TFM-980-S-FA	950-1010	SMF	≤ 1.5
		TFM-1050-S-FA	1010-1090	SMF	≤ 1.5
		TFM-980-MGI50-FA	950-1010	GI50/125	≤ 0.7
		TFM-1050-MGI50-FA	1010-1090	GI50/125	≤ 0.7
	Filter	Model Name	Wave length(nm)	Cavity	FWHW	Loss(dB)
		FC-1560B-1-1	1540-1560	1	1±0.2nm	≤ 1.0
		FC-1560B-1-3	1540-1560	1	3±0.3nm	≤ 0.5
		FC-1560B-2-5	1540-1560	2	5±0.5nm	≤ 0.5
		FC-980B-1-1	960-980	1	1±0.3nm	≤ 1.5
		FC-1074B-1-1	1054-1074	1	1±0.3nm	≤ 1.5
Special	Please inquire us your request, like that below.
	Filter *1		Specifify wavelength, LPF, SPF and so on.
	Wavelength *2		Please specify center wavelength of tuning range from 1260-1650nm. We provide customized modules for other wavelength bands, contact us for detail.
	Fiber		MMF, PMF, and DSF and so on.
	Connector and Polishing		SC, SPC, and so on.

* Specifications are subject to change without notice.

* The filter cassette and the main part can be purchased separately.

* Another type of main unit (WTFM/FC) is available, where two filter cassettes can be inserted.

*1 The following are specification in SMF. Please contact us about another characteristic.

*2 We provide customized modules for other wavelength bands, please contact us for detail.

Feature

Exchangeable filter cassette

The filter characteristics of the module can be changed by exchanging the filter cassette.
The TFM provides users a convenience in applications which require a variety of wavelength or FWHM.

An accurate wavelength adjustment by implementing micrometer mechanism.

Application

Research and development for the communication.

For test and selection of various filters.
For research and development of optical fiber communications.

For wavelength selection in WDM system (Combined with a LED/ASE light source)

For wavelength selection in WDM system. (Combined with a LED/ASE light source)

As simple narrowband tunable light source

It's possible to be used as the narrowband light source by combining with the LED light source or the ASE light source. Rotating the filter-cassette becomes a simple tunable wavelength light source.