18, rue Nicolas Appert 91400 Orsay - France

Modulators & Frequency Shifters

These fiber pigtailed devices can be used depending on the models as modulators, fixed frequency shifters, Q-switches or Pulse pickers. Our standard versions are proposed with a single mode fiber with polarization maintaining. However on request, we can offer different types of fibers or connectors. These devices are dedicated for telecommunication applications, as well as for printing, microscopy, lidars, remote sensing, Q-switching or any other scientific application.

Additional information

Compact Fibre Aoms For Industry

Compact ModelWavelength(nm)*Fiber TypeConfiguration**Frequency Shift (MHz)***Rise Time (ns)Max Laser Power (W)Insertion Losses (nom dB)Associated RF driver
MT200-IR10-Fio-PM-J1-A-Ic1030-1064PM2 Ports2001012.5MODAxx
MT250-IR6-Fio-PM0,5-J1-A-Ic1030-1064PM2 Ports25060.53.5MODAxx
MA40-IIR55-Fio-SM-J1-A-Ic21500-1600SM2 Ports40550.12MODAxx
MT80-IIR30-Fio-PM0.5-J1-A-Ic21500-1600PM2 Ports80300.52MODAxx

VIS range (400-700 nm)

ModelWavelength(nm)*Fiber TypeConfiguration**Frequency Shift (MHz)***Rise Time (ns)Max Laser Power (W)Insertion Losses (dB)Associated RF driver
MT180-G430-Fio-MM-xx488-532MM2 ports180<4300.53MODAxx
MQ180-G9-Fio-xx488-532PM2 ports18090.13MODAxx
MT80-G60-Fio-xx488-532SM, PM2 ports80600.13MODAxx
MT200-BG9-Fio-xx488-561SM, PM2 ports20090.0053MODAxx
MT200-BG18-Fio-xx488-561SM, PM2 ports200180.022MODAxx
MT200-BG40-Fio-xx488-561SM, PM2 ports200400.12MODAxx
MT200-R9-Fio-xx630-700SM, PM2 ports20090.13MODAxx
MT200-R18-Fio-xx630-700SM, PM2 ports200180.42MODAxx

NIR range (780-870 nm)

ModelWavelength(nm)*Fiber TypeConfiguration**Frequency Shift (MHz)***Rise Time (ns)Max Laser Power (W)Insertion Losses (dB)Associated RF driver
MT80-NIR60-Fio-xx780-870SM, PM2 ports80600.5 or 22MODAxx
MT110-NIR20-Fio-xx780-870SM, PM2 ports110200.5 or 22.5MODAxx
MT200-NIR10-Fio-xx780-870SM, PM2 ports200100.53MODAxx
MT250-NIR6-Fio-xx780-870SM, PM2 ports25060.24MODAxx

IR range (980-1100 nm)

ModelWavelength(nm)*Fiber TypeConfiguration**Frequency Shift (MHz)***Rise Time (ns)Max Laser Power (W)Insertion Losses (dB)Associated RF driver
MT80-IR60-Fio-xx980-1100SM, PM2 ports80600.5 or 5W1.5MODAxx
MT110-IR20-Fio-xx980-1100SM, PM2 ports110200.5 or 5W2MODAxx
MT200-IR10-Fio-xx980-1100SM, PM2 ports200100.5 or 1W2.5MODAxx
MT250-IR6-Fio-xx980-1100SM, PM2 ports25060.53.5MODAxx
MT110-IR25-Fio-HP980-1100SM, PM2 ports + 0 order absorber110255 to 82.5MODAxx
MT110-IR25-3Fio-xx980-1100SM, PM3 ports110250.5, 52.5MODAxx

IIR range (1250-1650 nm)

ModelWavelength(nm)*Fiber TypeConfiguration**Frequency Shift (MHz)***Rise Time (ns)Max Laser Power (W)Insertion Losses (dB)Associated RF driver
MA40-IIR-120-Fio-xx1250-1650SM, PM2 ports401200.52MODAxx
MT40-IIR80-Fio-xx1250-1650SM, PM2 ports40800.5 or 52MODAxx
MT80-IIR30-Fio-xx1250-1650SM, PM2 ports80300.5 or 52MODAxx
MT110-IIR20-Fio-xx1250-1650SM, PM2 ports110200.5 or 53.5MODAxx
MT160-IIR10-Fio-xx1250-1650SM, PM2 ports160100.5 or 15MODAxx
MT200-IIR30-Fio-xx1250-1650SM, PM2 ports200300.5 or 55MODAxx
MT110-IIR25-3Fio-xx1250-1650SM, PM3 ports110250.5, 53MODAxx

FIR range (1850-2100 nm)

ModelWavelength(nm)*Fiber TypeConfiguration**Frequency Shift (MHz)***Rise Time (ns)Max Laser Power (W)Insertion Losses (dB)Associated RF driver
MT80-FIR40-Fio-xx1850-2100SM, PM2 ports80<400.5 or 54MODAxx

* All fiber pigtailed devices are optimized at factory for a single wavelength
** 2 Ports: INPUT -pigtailed + 1st Order OUTPUT pigtailed, 3 Ports: INPUT + 0 order + 1st order pigtailed, On request: INPUT -pigtailed + 0 Order OUTPUT pigtailed
*** Down shift available on request

Fiber lasers

A fiber laser or fibre laser is a laser in which the active gain medium is an optical fiber doped with rare-earth elements such as erbium, ytterbium, neody- mium, dysprosium, praseodymium, and thulium. Fiber nonlinearities, such as Stimulated Raman Scattering or Four Wave Mixing can also provide gain and thus serve in effect as gain media. Unlike most other types of lasers, the laser cavity in fiber laser is constructed monolithically by fusion splicing the different types of fibers; most notably fiber Bragg gratings replace here conventional dielectric mirrors to provide optical feedback.

To pump fiber lasers, semiconductor laser diodes or other fiber lasers are used almost exclusively. Fiber lasers can have several kilometer-long active regions and provide very high optical gain. They can support kilowatt level of continuous output power because the fiber’s high surface area to volume ratio allows efficient cooling. The fiber waveguiding properties reduce or remove completely thermal distortion of the optical path thus resulting in typically dif- fraction-limited high-quality optical beam. Fiber lasers also feature compact layout compared to rod or gas lasers of comparable power, as the fiber can be bent to small diameters and coiled. Other advantages include high vibrational stability, extended lifetime and maintenance-free turnkey operation.Many high-power fiber lasers are based on doublecladfiber. The gain medium forms the core of thefiber, which is surrounded by two layers of cladding.The lasing mode propagates in the core, whilea multimode pump beam propagates in the innercladding layer. The outer cladding keeps this pumplight confined. This arrangement allows the core tobe pumped with a much higher power beam thancould otherwise be made to propagate in it, andallows the conversion of pump light with relativelylow brightness into a much higher-brightness signal.As a result, fiber lasers and amplifiers are occasionallyreferred to as «brightness converters.»

Applications include: Material processing,telecommunications,spectroscopy, and medicine.