Optical Tunable Filters
The TTFG series tunable optical filter integrates a fiber Bragg grating (FBG) with a thermally controlled tuning platform to provide narrow-linewidth filtering with wide center-wavelength adjustability. Two configurations are available: a two-port reflection version that functions as a tunable notch filter, and a three-port transmission-reflection version with an integrated circulator that operates as a tunable bandpass filter. Standard FBG linewidths are offered from 0.07 nm to 2 nm, with narrower custom designs available. Our circulators cover 350–2200 nm, enabling broad system compatibility for three-port TTFG solutions. The module includes an integrated driver with USB GUI control for plug-and-play operation, along with a DC power supply.
Configuration options
Configure the options below and add your exact build to the enquiry — we confirm the part number and availability.
Part number: TTFG-155051201311N
Wavelength: 1550.5nm · Linewidth: 0.07nm · Port: 2 · Fiber Type: SMF-28 · Fiber Cover: 900um tube · Fiber Length: 0.25m · Connector: None · API: Non
Application context
Application guidance is tied to the configured wavelength, fiber interface and optical-budget fields for this family.
Thermally Tunable FBG Filter – 0.07nm Linewidth, 2nm Tuning: Laboratory optical integration depends on preserving the optical budget through the complete path. The 1550.5nm, 950.8nm, 1061.5nm wavelength specification sets source and detector compatibility. The fiber/interface entry (SMF-28, PM1550, PM1310, SM980) must match the connected components.
Thermally Tunable FBG Filter – 0.07nm Linewidth, 2nm Tuning: Fiber-optic instrumentation depends on preserving the optical budget through the complete path. The 1550.5nm, 950.8nm, 1061.5nm wavelength specification sets source and detector compatibility. The fiber/interface entry (SMF-28, PM1550, PM1310, SM980) must match the connected components.
System integration
Use these checks to connect Thermally Tunable FBG Filter – 0.07nm Linewidth, 2nm Tuning to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
Technical FAQ
Fiber Type: SMF-28, PM1550, PM1310, SM980 · Fiber Cover: 900um tube. Specify connector polish and fiber architecture together. FC/PC, FC/APC and SMA interfaces, and single-mode, multimode and polarization-maintaining fibers, impose different return-loss, mode-field and alignment requirements.
Wavelength: 1550.5nm, 950.8nm, 1061.5nm. Check the Optical Tunable Filters passband, insertion loss, return loss and power handling at the actual source wavelength; a nominal telecom-band label is not a substitute for the configured range.
Share your wavelength, fiber type, connector, power handling and control requirements and we will qualify the matching configuration and part number.
Model selection
Compare Thermally Tunable FBG Filter – 0.07nm Linewidth, 2nm Tuning with the closest available models in the Optical Tunable Filters family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | Thermally Tunable FBG Filter – 0.07nm Linewidth, 2nm Tuning (current) | Mini Manual Etalon-Based Narrowly Tunable Fiber Optic Filters | MEMS Fiber Optic Tunable Filter – 0.8nm Linewidth, 80nm Tuning |
|---|---|---|---|
| Wavelength range | 1550.5nm, 950.8nm, 1061.5nm | 2000nm, 1310nm, 1550nm, 1060nm, 850nm, 750nm, Special | 1528~1610nm, 1560~1640nm, 1960 ± 40nm, 1620 ± 40nm, 1480 ± 40nm, 1395 ± 55nm, 1310 ± 40nm, 1230 ± 50nm, 1145 ± 45nm, 1130 ± 40nm, 1060 ± 40nm, Special |
| Optical performance | Confirm for this model | Confirm for this model | Confirm for this model |
| Fiber type | SMF-28, PM1550, PM1310, SM980 | SMF-28, HI1060, PM980, PM1550, Special | SMF-28, HI1060, PM980, PM1550, SM1950, PM1950, Special |
| Connector / control | None, FC/APC | None, FC/PC, FC/APC, SC/PC, SC/APC, ST/PC | USB, RS232, None |
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