BRNLTL-GB – Narrow Linewidth Tunable Laser – Gold Box


General Description

The BRNLTL-GB is a high performance external cavity tunable laser for coherent optical transceivers in metro and long haul applications. It presents excellent operating characteristics such as high output power, ultra-narrow linewidth, and low intrinsic noise, making the BRNLTL-GB suitable in challenging advanced electro-optical modulation formats such as 64QAM and 256QAM. Its small dimensions and low power consumption enable high-density transceivers such as CFP2, CFP4 and CFP8 pluggable modules.

The BRNLTL-GB design allows important performance advantages such as flexible grid operation up to 6.25 GHz, high tuning speed of milliseconds, and high reliability.


  • High-speed optical transceivers
  • Metro and long-haul applications
  • Advanced modulation formats
    • QPSK, 16QAM, 64QAM, and 256QAM
  • High-density modules and subsystems
    • Pluggable CFP, CFP2, CFP4, CFP8
    • OIF MSA modules, 4×5 and 5×7
    • Line cards and subsystems
  • Multi-carrier coherent transceivers
  • Test & Measurement equipment


  • High output optical power: > 15.5 dBm
  • Ultra-narrow linewidth: < 100 kHz
  • Low power consumption: < 3.5 W
  • Low RIN: < -145 dB/Hz
  • High SMSR: > 50 dB
  • Small form factor package (goldbox)
    • L x W x H = 17.9 x 6.4 x 6 mm
  • Full C-band tunability: > 40 nm
  • Operating temperature: -5 to 75 oC
  • ITU-T flexible-grid: up to 6.25 GHz
  • Evaluation Kit available

To obtain a datasheet, please send us a request at