Modulation Method of Laser for Underwater Communication

Authors

  • J. P. Singhal Instruments Research and Development Establishment, Dehra Dun
  • D. K. Srivastava Instruments Research and Development Establishment, Dehra Dun

DOI:

https://doi.org/10.14429/dsj.34.6056

Keywords:

Blue green lasers, Laser applications, Sonar technology, Underwater communication system, Pulse interval modulation

Abstract

Due to very high absorption of light in the water it is necessary to use high energy pulsed bluegreen lasers for underwater communication systems. However,these lasers do not have high repetition rates, sufficient enough to support high data rate signals. The pulse interval modulation method is one of the prospective methods of sending large bandwidth data using low frequency (500 to1000 pulses per second) pulsed laser. This method appears to be more promising for underwater communication system with likely development of fast PIM coder/decoder.

Author Biographies

J. P. Singhal, Instruments Research and Development Establishment, Dehra Dun

Instruments Research and Development Establishment, Dehra Dun-248008

D. K. Srivastava, Instruments Research and Development Establishment, Dehra Dun

Instruments Research and Development Establishment, Dehra Dun-248008

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Published

2014-01-27

How to Cite

Singhal, J. P., & Srivastava, D. K. (2014). Modulation Method of Laser for Underwater Communication. Defence Science Journal, 34(1), 79–84. https://doi.org/10.14429/dsj.34.6056

Issue

Vol. 34 No. 1: Ocean Optics

Section

Special Issue Papers

License

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