FREE-SPACE-ISOLATOR COHERENT | Alldatasheet
Document overview
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Technical content
Coherent’s Free Space Isolators cores are used in various TOSAs, which require isolation to prevent feedback into the laser. This product is available in single and double stage designs. The Free Space Isolators offer excellent performance with low insertion loss and high isolation. Coherent’s proprietary process, combined with 15+ years of volume manufacturing experience and high level capacity, results in a high reliability record. We are providing various types FSIs including latching, non-latching; single stage, dual stage; core and assemblies. Typical assemblies include magnet rings, SMT, receptacles, Fiber array and relative cables. FEATURES APPLICATIONS
- High Isolation
- Low Insertion Loss
- Compact Size
- Environmental Stable
- RoHS Compliant
- Optical Transmitter
- Fiber Laser
- Tunable Laser FREE SPACE ISOLATOR Optical Communications
Parameter Unit Single Stage Dual Stage Operating Central Wavelength (°C) nm 1310, 1550 or customized Wavelength Range nm CL ±20 or customized Isolation Min. dB 20 40 Insertion Loss Max. dB 0.4 0.60 Size mm 0.45 x 0.45 or customized Operating Temperature °C -5 ~ 75 Storage Temperature °C -40 ~ 85 Note 1. This is typical Specification. The size, wavelength, operating temperature and other configurations can be customized. Refer to Ordering Information. 2. Isolation and Insertion loss are specified over operating temperature and wavelength range, will varies with operating range. INPUT POLARIZATION OUTPUT POLARIZATION W±0.02 L±0.02 Laser dot INPUT 45° Input Polarization T±0.1 B±1.5°
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Ordering Information
Free Space Isolator in other configuration is also available. Some typical configuration as below. XXXX – XXXX – X*X – XX – X – XX Category A B C D E Category Construction KPGP=Non-latching FSI Core single stage KPMP=Latching Core single stage KPGPGP=Non-latching FSI Core dual stage KPMPMP=Latching Core dual stage KPMPW=Latching Core single stage with wave plate KPGW=Latching Core 1 polarizer with wave plate Others=charters in sequence indicate material of layers A Center Wavelength 1310 = 1310 nm 1550 = 1550 nm XXXX = XXXX nm B Size (mm) 0.45*0.45 = 0.45*0.45 mm L *W = L *W mm C Coating AA = Both side AR AU = Input side AR UA = Output side AR UU = No coating D Angle 0 = 0º A = Aº E Polarization Rotation CW = Clockwise CC = Counter Clockwise Magnet Ring FSI SMT FSI FA + FSIReceptacle FSI