MC GratingCoherent summation of the radiation of a single-mode laser diode array
S I Derzhavin, O A Dyukel', N M Lyndin
S I Derzhavin, O A Dyukel' and N M Lyndin, “Coherent summation of the radiation of a single-mode laser diode array”, Quantum Electron. 42, 561-564 (2012). https://doi.org/10.1070/qe2012v042n06abeh014826
To phase-lock an array of single-mode laser diodes, the authors use a waveguide grating with resonant abnormal reflection as the common external feedback mirror: it reflects 100% at the resonance wavelength under normal incidence and is anti-reflecting elsewhere. Designing it splits into two steps, the anti-reflecting waveguide stack first, then the period and depth that place a resonance of the wanted angular width at the wanted wavelength.
Nikolay Lyndin, the author of MC Grating, is a co-author, and the design is one of the site's step-by-step examples.
- Step-by-step example
- Section 1.1.5 of the step-by-step examples reproduces the resonant-mirror design, adapted to demo mode.
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- Coherent summation of the radiation of a single-mode laser diode array (PDF, 622 KB)
© 2012 IOP Publishing. This copy is hosted for the convenience of MC Grating users; the version of record is the publisher's, at the DOI above.
MC Grating is Windows software that computes diffraction gratings by the modal method and the C method. The download page has the current release, which runs in demo mode without a license key.