Highly coherent injection-locked laser diode arrays
- Lawrence Livermore National Laboratory, Livermore, California 94550 (US)
Two physically separated laser diode arrays were simultaneously injection-locked to the same master laser. The modulus of their mutual coherence function was measured, and the resulting value 0.96{plus minus}0.06 was close to the maximum allowed value of 1. The spatial phase of the two injection-locked outputs did not vary from each other by more than 0.05 wave ({lambda}/20), apart from a phase difference that grew linearly with position, due to the tilt between the two interfering beams. Requirements for the coherent combination of injection-locked laser diode arrays are discussed.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5860198
- Journal Information:
- Applied Optics; (USA), Journal Name: Applied Optics; (USA) Vol. 30:3; ISSN 0003-6935; ISSN APOPA
- Country of Publication:
- United States
- Language:
- English
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