L2tek Optical Components

L2TEK supply a wide range of optical components for both video and telecom applications. We offer both standard components and customer specific designs. Please contact us for more information on our product range or to discuss specific applications.

GennumSFP

Video SFP modules all designed to be 3G capable and tested for video pathalogical signals. Gennum products offer guaranteed optical performance using proven designs and high quality components.

Gennum Optical Modules
  GO2927 GO2917 GO2929 GO2928 GO2918
Description 3Gb/s-SDI Dual Channel PIN Rx 3Gb/s-SDI Single Channel PIN Rx 3Gb/s-SDI 1310nm FP/PIN Transceiver 3Gb/s-SDI Dual Channel 1310nm FP Tx 3Gb/s-SDI Single Channel 1310nm FP Tx
No of Optical Inputs 2 1 1 - -
No. of Optical Outputs - - 1 2 -1
3Gb/s Pathalogical Rx sensitivity (dBm) -23 -23 -22 - -
Typical Average Optical Output Power (dBm) - - -2 -2 -2
Nominal Optical Wavelength (nm) 1260-1620 1260-1620 Tx 1310 / Rx 1260-1620 1310 1310
Data Rate (Mb/s) 50-3000 50-3000 50-3000 50-3000 50-3000
Power (mW) 600 300 650 700 350
Temp Range (degree C) 0 to +70 0 to +70 0 to +70 0 to +70 0 to +70
Supply Voltage 3.3V 3.3V 3.3V 3.3V 3.3V
Max. Distance @ 3Gb/s-SDI (km) -* -* 10** 10** 10**
Package Video SFP Video SFP Video SFP Video SFP Video SFP

* - Maximum link distance is dependant on Tx type and data rate

** - When used with a SMPTE 297-2006 compatible receiver over single mode cable. Maximum distanceis 21Km for HD-SDI and 30Km for SD-SDI

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For CWDM and DWDM applications we can supply 8 or 16 channel mux / demux units in small form factors ideally suited for use in video modular products. The filters are bidirectional and can be terminated with SC or LC connectors. The filters combine directly with the range of CWDM SFP Video Optical Modules from Gennum Corporation for use in the 1270 - 1410 nm and 1470 - 1610 nm bands. The 8 way filters have an "express" channel that allows the filters to be cascaded making a 16 way solution.

We also have a wide range of optical passive components including circulators, switches, couplers, attenuators and patchcords. Please contact use for more information and for inquiries on custom optical designs.

Typical performance - 8 channel 1270 to 1410 nm CWDM filter - Part number CWDM-8+1-27-2-0.25-LC

Parameter  
Operating Center Wavelength(nm)   1270 1290 1310 1330 1350 1370 1390 1410 Express
Insertion Loss (dB) <2.8 0.54 0.82 1.98 1.80 2.01 2.34 2.36 2.50 2.25
Channel Ripple (dB) <0.3 0.11 0.18 0.12 0.13 0.15 0.16 0.14 0.13 0.18
Polarization Dependant Loss (dB) <0.10 0.01 0.02 0.03 0.02 0.02 0.02 0.04 0.01 0.03
Isolation Adjacent (dB) >30
Non-adjacent (dB) >40
Express port >12
Polarization Mode Dispersion (ps) <0.1
Directivity (dB) >50
Return Loss (dB) >50
Connector Type LC/UPC
Fiber Length (m) 0.25
Fiber Type SMF-28eXB with 900um loose tube
Operating Temperature -10 to +70 degree C
Stoprage Temperature -40 to +85 degree C
Package Dimension (mm) 60 x 60 x 10

Typical performance - 8 channel 1470 to 1610nm CWDM filter - Part number CWDM-8+1-47-2-0.25-LC

Parameter  
Operating Center Wavelength(nm)   1470 1490 1510 1530 1550 1570 1590 1610 Express
Insertion Loss (dB) <2.8 0.88 0.95 1.02 1.12 1.42 2.68 2.18 2.50 1.85
Channel Ripple (dB) <0.3 0.13 0.11 0.15 0.13 0.12 0.13 0.10 0.16 0.15
Polarization Dependant Loss (dB) <0.10 0.03 0.05 0.05 0.02 0.02 0.02 0.01 0.04 0.02
Isolation Adjacent (dB) >30
Non-adjacent (dB) >40
Express port >12
Polarization Mode Dispersion (ps) <0.1
Directivity (dB) >50
Return Loss (dB) >50
Connector Type LC/UPC
Fiber Length (m) 0.25
Fiber Type SMF-28eXB with 900um loose tube
Operating Temperature -10 to +70 degree C
Stoprage Temperature -40 to +85 degree C
Package Dimension (mm) 60 x 60 x 10

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