Locking of Diode Gain Modules Using Optical Conjugation Techniques
Final rept. 1 Aug 1982-30 Sep 1983
HUGHES RESEARCH LABS MALIBU CA OPTICAL PHYSICS DEPT
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This report reviews results of a study program to investigate technical issues relating to the coupling of multiple diode lasers using a phase conjugate resonator. We present calculations showing the effects on the far- field intensity distribution of either systematic or random phase differences between adjacent gain elements these results dramatically illustrate the beneficial impact of exact phase locking. The use of phase conjugation to phase- lock the individual emitters is suggested, and computer calculations showing the beneficial effects on the far-field intensity distribution are reviewed. The normal modes of a multiple-element diode chip are derived this information allows one to determine phase relationships characteristics of each mode. These relationships can be used to identify approaches that might be employed to favor one particular mode in a practical device.
- Lasers and Masers