Title :
Demonstration of optical DPSK communication with 25 photons/bit receiver sensitivity
Author :
Caplan, D.O. ; Stevens, M.L. ; Carney, J.J. ; Murphy, R.J.
Author_Institution :
Lincoln Lab., MIT, Lexington, MA
Abstract :
We demonstrate optically-matched preamplified-DPSK communications at 2.5 Gbit/sec and 1557 nm wavelength, with uncoded sensitivities of 25 photons/bit at 10-9 bit-error-rate, falling less than 1 dB from quantum-limited theory.
Keywords :
differential phase shift keying; error statistics; optical communication; optical receivers; bit rate 2.5 Gbit/s; bit receiver sensitivity; bit-error-rate; optically-matched DPSK communications; preamplified-DPSK communications; quantum-limited theory; uncoded sensitivities; wavelength 1557 mum; Chirp; Differential quadrature phase shift keying; Fiber nonlinear optics; Optical fiber communication; Optical filters; Optical interferometry; Optical modulation; Optical receivers; Optical sensors; Optical transmitters; (060.2330) Fiber optics communications; (060.4080) Modulation; (060.4510) Optical communications;
Conference_Titel :
Lasers and Electro-Optics, 2006 and 2006 Quantum Electronics and Laser Science Conference. CLEO/QELS 2006. Conference on
Conference_Location :
Long Beach, CA
Print_ISBN :
978-1-55752-813-1
Electronic_ISBN :
978-1-55752-813-1
DOI :
10.1109/CLEO.2006.4627613
