USA as Represented by Secretary of the Navy

Bienvenido Melvin Pascoguin

Alexandru Hening

Burton Hamilton Neuner, Iii

Systems and methods for wavelength optimization for underwater optical communication can include a plurality of n lasers having different wavelengths &#x3bb;for i=1 to n, a beam splitter and a corner retro-reflector. The plurality of n lasers can simultaneously illuminate the beam splitter along a coincident axis. The plurality of n lasers can be selectively blocked so that only one laser wavelength &#x3bb;at a time impinges on the beam splitter. A portion passes through the beam splitter to establish a reference signal, while the remainder is reflected off the corner retro-reflector. A portion of return illumination passes through the beam splitter to establish a return signal. The process can be repeated for each of n lasers for i=1 to n. The &#x3bb;wavelength where the normalized signal-to-noise differential between the reference signal and return signal is the minimum can be the optimum communication wavelength.

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La Mesa, CA, United States of America

Bienvenido Melvin Pascoguin