Heterodyne detection of partially coherent optical signal

1981 ◽  
Vol 64 (9) ◽  
pp. 97-103
Author(s):  
Takashi Takenaka ◽  
Nobuhiro Saga ◽  
Otozo Fukumitsu
Keyword(s):  
Optical Signal ◽  
Heterodyne Detection ◽  
Partially Coherent

Heterodyne detection of partially coherent optical signal

1981 ◽  
Vol 64 (9) ◽  
pp. 97-103
Author(s):  
Takashi Takenaka ◽  
Nobuhiro Saga ◽  
Otozo Fukumitsu
Keyword(s):  
Optical Signal ◽  
Heterodyne Detection ◽  
Partially Coherent

Heterodyne efficiency for a partially coherent optical signal

1992 ◽  
Vol 31 (25) ◽  
pp. 5391 ◽  
Author(s):  
Toshiyuki Tanaka ◽  
Mitsuo Taguchi ◽  
Kazumasa Tanaka
Keyword(s):  
Optical Signal ◽  
Partially Coherent

From computer-generated holograms toward partially coherent optical signal processors

2001 ◽  
Author(s):  
David Mendlovic ◽  
Gal Shabtay ◽  
Zeev Zalevsky ◽  
Emanuel Marom ◽  
Uriel Levy ◽  
...  
Keyword(s):  
Optical Signal ◽  
Partially Coherent ◽  
Computer Generated Holograms ◽  
Signal Processors

scholarly journals Interferometric electro-optical signal processors with partially coherent illumination

1992 ◽  
Vol 9 (9) ◽  
pp. 1498 ◽  
Author(s):  
Joseph Rosen ◽  
Mordechai Segev ◽  
Joseph Shamir ◽  
Amnon Yariv
Keyword(s):  
Optical Signal ◽  
Partially Coherent ◽  
Coherent Illumination ◽  
Signal Processors

The performance of heterodyne detection system for partially coherent beams in turbulent atmosphere

2015 ◽  
Vol 356 ◽  
pp. 620-627 ◽  
Author(s):  
Li Chengqiang ◽  
Wang Tingfeng ◽  
Zhang Heyong ◽  
Xie Jingjiang ◽  
Liu Lisheng ◽  
...  
Keyword(s):  
Turbulent Atmosphere ◽  
Detection System ◽  
Heterodyne Detection ◽  
Partially Coherent ◽  
Coherent Beams ◽  
Partially Coherent Beams

scholarly journals Optoelectronic mixer with a photoconductive switch for 1550 nm wavelengths

2018 ◽  
pp. 16-21
Author(s):  
Róbert Horváth ◽  
Jean-François Roux ◽  
Julien Poëtte ◽  
Béatrice Cabon
Keyword(s):  
Data Stream ◽  
Continuous Wave ◽  
Detection System ◽  
Local Oscillator ◽  
Optical Signal ◽  
Wide Frequency Range ◽  
Electrical Signal ◽  
Heterodyne Detection ◽  
Photoconductive Switch ◽  
Semiconductor Laser Diode

We demonstrate an optoelectronic mixer based on an ultrafast InGaAs photoconductive switch and its use in an innovative heterodyne detection system for Radio over Fibre transmission. The advantage of the proposed switch is its relatively flat response curve in a wide frequency range up to 67 GHz. Two mixing schemes are presented through I-Q modulated data-stream down-conversion. The data can modulate either the electrical signal or the optical signal. In case the electrical signal is modulated, a mode-locked semiconductor laser diode is used as an optical local oscillator at the self-oscillating frequency of 24.5 GHz. The InP based quantum-dash mode-locked laser emitting in the 1570 nm wavelength range is stabilized by a feedback loop and shows a low phase noise in order to increase the mixing performances of the detection apparatus. In a second experiment, the photoconductive switch is combined with a continuous wave laser to demonstrate the feasibility of down converting an optically provided data-stream with an electrical local oscillator.

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