Fast generation of optimum operating points for tuneable SG DBR laser over 1535-1565 nm range
- Resource Type
- Conference
- Authors
- Dunne, J.; Farrell, T.; O'Dowd, R.
- Source
- Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Edition. CLEO '99. Conference on Lasers and Electro-Optics (IEEE Cat. No.99CH37013) Lasers and electro-optics 99 Lasers and Electro-Optics, 1999. CLEO '99. Summaries of Papers Presented at the Conference on. :147-148 1999
- Subject
- Photonics and Electrooptics
Components, Circuits, Devices and Systems
Distributed Bragg reflectors
Tunable circuits and devices
Wavelength division multiplexing
Wavelength measurement
Diode lasers
Costs
Laser tuning
Semiconductor lasers
Current measurement
Power measurement
- Language
Summary form only given. Tuneable sources for DWDM applications based on semiconductor laser diodes will not be viable until the cost and time involved in characterisation decreases. The SG-DBR laser has the potential for such applications however it is a complex multi-section device. Each WDM channel requires a set of four controlling currents to obtain the correct operating point. Therefore to obtain 100 channels to fulfill the ITU G692 specification requires the measurement of output power and wavelength for hundreds of thousands of combinations of input currents. Wavelength measurements are costly and time consuming and this type of full characterisation takes one week to complete.