
Based on our proprietary thin film cavity filter technology, we produce Fiber Optic Tunable Filters with central wavelengths ranging from 1060nm to 2050nm. We can also create filters with other central wavelengths. They are tunable continuously over a wide spectral range of up to 100 nm with a peak bandwidth of 1nm. Filters with longer central wavelengths have a larger tuning range. The wavelength tuning is actuated by driving a built-in precise stepper motor through the interface of USB or RS232. Our unique high reliability and low insertion loss design present the most cost-effective solution for OEM applications, from fiber-optic networks to fiber sensing interrogation.
The current standard configurations are in volume production, thus providing low-cost benefits. Filters with other wavelengths are available but require an extra cost to produce.

Based on our proprietary thin film cavity filter technology, we manufacture Fiber Optic Tunable Filters with central wavelengths ranging from 750nm to 2450nm. These filters are continuously tunable over a wide spectral range of up to 100nm, with a peak bandwidth of 3nm. Longer center wavelengths offer a larger tuning range. The tuning mechanism involves manually rotating a mirror using a precise micrometer. The filters feature low insertion loss, making them a preferred solution for OEM applications ranging from fiber optic networks to fiber sensing interrogation. Our standard configurations are currently in volume production, providing a low-cost benefit. Customization for other wavelengths is available at an additional cost.
These grating-based tunable filters block the off-bands.
The filter only works in the specific range, beyond this range extra peaks may show. These peaks can be block with special order.
Please follow these instructions to do an optical insertion loss test:
- Connect a broadband fiber-coupled laser source to OSA, sweep one time over the specified range of the tunable filter, then fix the curve in Trace A as reference.
- Connect the broadband laser source to the fiberoptic tunable filter fiber as input, then connect the other fiber port of the tunable filter as the output to the OSA.
- Set OSA Trace B as ‘write,’ Trace C as ‘Calculate: B-A.’ Auto sweep Trace C from the specific range. Tune the micrometer to shift the peak at a different wavelength. Use ‘Peak search’ to record IL at a different wavelength.”

Based on a proprietary thin film cavity filter technology and device configuration, we uniquely offers a cost effective Fiber Optic Tunable Filters with wide spectral range up to 300 nm and with low loss. The wavelength tuning is actuated by driving a build-in precise stepper motor through interface of USB or RS232. Custom specific range is available.
Agiltron’s unique high reliability and low insertion loss design presents a most cost-effective solution for OEM applications from fiber optic networks to fiber sensing interrogation.
These grating-based tunable filters block the off-bands.

Based on our proprietary thin film cavity filter technology, we offer Fiber Optic Tunable Filters with central wavelengths of 1060nm, 1310nm, 1550nm and 2000nm. They are tunable continuously over a wide spectral range up to 80nm. The wavelength tuning is made by manually rotating a precise micrometer. Our unique high reliability and low insertion loss design presents the most cost-effective solution for OEM applications from fiber optic networks to fiber sensing interrogation.
These grating-based tunable filters block the off-bands.

Agiltron offers Miniature Fiber Optic Tunable Filters featuring polarization insensitivity, low loss, and low cost with central wavelengths of 1060nm, 1310nm, 1550nm, and 2000nm. They are tunable continuously over a wide spectral range of up to 80 nm. The wavelength tuning is made by manually rotating a screw. A position locking screw is incorporated. The center wavelength and the bandwidth can be customized in accordance with the requirements. High average power handling up to 10W is available. Agiltron’s unique high reliability and low insertion loss design presents a most cost-effective solution for OEM applications from fiber lasers, optic networks, fiber sensing systems.

Based on a proprietary thin film cavity filter technology, Agiltron offers Fiber Optic Tunable Filters with central wavelengths of 1060nm, 1310nm, 1550nm, and 2000nm. We are tunable continuously over a wide spectral range of up to 80 nm. The wavelength tuning is actuated by driving a built-in precise stepper motor through the interface of USB or RS232. Our unique high reliability and low insertion loss design present the most cost-effective solution for OEM applications from fiber-optic networks to fiber sensing interrogation.
These grating-based tunable filters block the off-bands.

Agiltron’s Electrically Tunable Grating-Based Fiber Optic Filter provides a simple way to adjust the center wavelength of narrow band over wide band. Wavelength tuning is actuated by driving a built-in precise stepper motor through the interface of USB or RS232.
Based on our proprietary optics, Agiltron offers extremely low insertion loss, high stability, polarization-independent operation, and high off-band suppression. It is tunable continuously over a wide spectral range. The device presents the most cost-effective solution for OEM applications from fiber optic networks to fiber sensing interrogation.

The SUTL is a fiber-coupled, single-mode tunable laser that delivers over 5W of average power across an ultra-broad spectral range of 450 – 2200 nm with exceptional stability (<0.5% standard deviation). It uses a 1060 nm pulsed fiber laser to pump photonic fiber, producing a broadband, spatially coherent output with minimal polarization dependence, enabling highly stable polarized light through intrinsic optical symmetry. Wavelength tunability is achieved via a fiber-optic tunable filter with a typical 200 nm range, extendable through multiple filters and optical switches. The repetition rate can be adjusted with a front-panel knob or synchronized via TTL input. The system offers flexible output options, including free-space, fiber-coupled, and collimated beams, in a turnkey, plug-and-play benchtop unit ideal for scientific and industrial applications requiring stable, broadband, and coherent light. The photonic fiber output is standard; coupling into fiber significantly reduces power and increases cost. As the total laser output is distributed across a wide spectrum, the output power at a given wavelength is a function of the tunable filter’s passband width – the wider the passband, the higher the available power.

The FPTF is a fiber-coupled Fabry-Perot Tunable Filter based on a fiber tip-gap etalon cavity driven by a piezoelectric actuator. It features narrow linewidth, wide tuning range, low optical loss, and fast tuning speed. The tuning range exceeds 100 nm, corresponding to the etalon’s first-order free spectral range (FSR). Tuning beyond one FSR enters higher interference orders, potentially degrading signal quality. The piezo actuator supports scanning rates up to ~1 kHz, with resonant operation near 30 kHz. Due to inherent piezo drift, closed-loop feedback is recommended for wavelength stabilization. A full-function controller with small-amplitude dithering is available for precise tuning and control. The filter remains transparent outside its tuning band. The FPTF provides a cost-effective solution for high-speed wavelength scanning, spectroscopy, and tunable source applications requiring moderate finesse and rapid tuning.