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Home > Products > F-P Etalon Products > Wavelength Locker
Wavelength Locker  
Optoplex Wavelength Locker
Optoplex Wavelength Locker
Wavelength Locker PDF Datasheet
  • Description
  • Features
  • Applications
  • Specifications
Product Description - Wavelength Locker

Optoplex’s Athermal Fabre-Perot Wavelength Locker is a thermally stable, etalon-based device that can be widely used in wavelength monitoring or ITU-grid channel locking in DWDM systems, laser stabilization for tunable laser, optical power and network monitoring.  The wavelength locker has a wide capture range and excellent wavelength accuracy. A built-in thermistor can be used to calibrate out residue thermal effects when even higher wavelength accuracy is required or for a very narrow-FSR locker. The key optical component of the wavelength locker is an Etalon which is made in-house with Optoplex’s proven technology in thin-film optical coating and optical contact.



Features and Benefits of Wavelength Locker
  • Athermal design
  • C+L-band coverage by a single device
  • Extremely low temperature dependence
  • High wavelength accuracy
  • Periodical locking covers all channels
  • Built-in thermistor for better locking accuracy
  • Telcordia GR-468 & 1221 compliant
Applications of Wavelength Locker
  • Precision laser locking for DWDM and ultra DWDM transmitter
  • Wavelength monitoring
  • Laser stabilization for tunable laser module
  • DWDM channel frequency and optical power monitoring
Key Specifications of 25G & 50G Etalon-based Wavelength Lockers





Wavelength Range nm 1525 - 1565: C
1560-1620: L
1520-1620: C+L
Center Wavelength ITU
Wavelength Accuracy over T, Pol and EOL GHz ±1 ±2
Polarization Dependent Accuracy GHz 0.4 0.6
Wavelength Capture Range (from ITU) GHz 9 18
Locking Slope at ITU Point dB/GHz ~ 0.5 – 0.8 ~ 0.5 – 0.8
Input Power Range dBm <10 <10
ORL Min dB 45 45
PD Calibration Offset dB 0.4 0.6
PD1 Responsivity (Reference) A/W 0.1 to 0.4 0.16 to 0.32
PD2 Responsivity (Etalon) A/W 0.1 to 0.4 0.16 to 0.32
PD Dark Current @5V (reverse bias) nA 1 1
Temperature Sensor Supply Voltage V 4 to 10 4 to 10
Temperature Sensor Monitor mV/C 7 to 13 7 to 13