Statistics of phase noise in single-mode semiconductor lasers: free-running, weak external feedback and injection-locking configurations

1987 ◽  
Vol 23 (22) ◽  
pp. 1183 ◽  
Author(s):  
A. Mecozzi ◽  
S. Piazzolla ◽  
A. Sapia ◽  
P. Spano
Keyword(s):  
Phase Noise ◽  
Semiconductor Lasers ◽  
Single Mode ◽  
Injection Locking ◽  
External Feedback ◽  
Free Running

Shift of Mode-Hopping Wavelength in Single-Mode Semiconductor Lasers

1993 ◽  
Vol 47 (10) ◽  
pp. 1716-1719
Author(s):  
Ring-Ling Chien
Keyword(s):  
Semiconductor Lasers ◽  
Systematic Approach ◽  
Tuning Range ◽  
Longitudinal Mode ◽  
Single Mode ◽  
Junction Temperature ◽  
Radiation Mode ◽  
Molecular Transition ◽  
Free Running ◽  
Mode Hopping

The shifts of the wavelength position that a radiation mode jumps from one longitudinal mode to the next in semiconductor lasers have been studied. The variation of the gain curve is found to depend not only on the junction temperature but also on the carrier density. The mode hops occur at different wavelengths and temperatures as the injection current changes. A systematic approach to controlling the temperature and current could extend the wavelength tuning range to a much greater extent. A wider tuning range will provide a free-running diode laser capable of readily reaching the specific atomic or molecular transition.

scholarly journals Optical Sideband Injection Locking Using Waveguide Based External Cavity Semiconductor Lasers for Narrow-Line, Tunable Microwave Generation

Photonics ◽  
2019 ◽  
Vol 6 (3) ◽  
pp. 81 ◽  
Author(s):  
Md. Rezaul Hoque Khan ◽  
Md. Ashraful Hoque
Keyword(s):  
Phase Noise ◽  
Semiconductor Lasers ◽  
External Cavity ◽  
Injection Locking ◽  
Optical Injection ◽  
Optical Cavities ◽  
Microwave Generation ◽  
Microwave Signals ◽  
Tunable Frequency ◽  
External Cavity Semiconductor Lasers

The generation by optical injection locking of spectrally unadulterated microwave signals using waveguide based external cavity semiconductor lasers (WECSL) is demonstrated. A tunable frequency of 2–11 GHz, limited by the modulator’s bandwidth and the photodetector (PD), was created as proof-of-experiment by the injection locking of the two WESCLs. A single sideband (SSB) phase noise of −75 dBc/Hz from the generated carrier at 10 kHz offset and a phase noise variance at an optimum injection ratio region was 0.03 rad2, corresponding to 1.7°, were observed. The main feature of this approach is the consolidation of the upsides of microwave generation at low phase noise with a broad tuning range and the capacity of hybrid photonic integration. In addition, the injection locking characteristics were used to determine the Q factor of the complicated optical cavities with unknown inner losses.

Transient multimode statistics in almost single-mode semiconductor lasers

1993 ◽  
Vol 140 (4) ◽  
pp. 237 ◽  
Author(s):  
A. Valle ◽  
P. Colet ◽  
L. Pesquera ◽  
M.San Miguel
Keyword(s):  
Semiconductor Lasers ◽  
Single Mode

Phase Noise Measurement of Optical Heterodyning Two-Tone Signal Generated by Two Free-Running Lasers

2013 ◽  
Vol E96.C (2) ◽  
pp. 241-244
Author(s):  
Ryuta YAMANAKA ◽  
Taka FUJITA ◽  
Hideyuki SOTOBAYASHI ◽  
Atsushi KANNO ◽  
Tetsuya KAWANISHI
Keyword(s):  
Phase Noise ◽  
Noise Measurement ◽  
Tone Signal ◽  
Free Running

Phase noise and spectral line shape in semiconductor lasers

1983 ◽  
Vol 19 (3) ◽  
pp. 266-270 ◽  
Author(s):  
B. Daino ◽  
P. Spano ◽  
M. Tamburrini ◽  
S. Piazzolla
Keyword(s):  
Spectral Line ◽  
Phase Noise ◽  
Semiconductor Lasers ◽  
Line Shape ◽  
Spectral Line Shape
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