Axial-graded-index (AGRIN) lens-based eight-channel wavelength division demultiplexer for multimode fiber-optic systems

1998 ◽  
Vol 10 (4) ◽  
pp. 564-566
Author(s):  
C.C. Zhou ◽  
R.T. Chen ◽  
B.V. Hunter ◽  
P. Dempewolf
Keyword(s):  
Fiber Optic ◽  
Multimode Fiber ◽  
Wavelength Division ◽  
Graded Index ◽  
Channel Wavelength ◽  
Optic Systems

Fiber-optic Fabry?Perot strain sensor based on graded-index multimode fiber

2011 ◽  
Vol 9 (5) ◽  
pp. 050602-50605 ◽  
Author(s):  
赵天 Tian Zhao ◽  
龚元 Yuan Gong ◽  
饶云江 Yunjiang Rao ◽  
吴宇 Yu Wu ◽  
冉曾令 Zengling Ran ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Strain Sensor ◽  
Multimode Fiber ◽  
Graded Index ◽  
Fabry Perot

International intercomparison of attenuation in fiber optic systems: multimode fiber and LED-based comparison

1991 ◽  
Vol 40 (5) ◽  
pp. 855-859 ◽  
Author(s):  
T. Iwasaki ◽  
B. Sordo ◽  
J. de Vreede ◽  
W. Moller ◽  
Y. Bettinelli
Keyword(s):  
Fiber Optic ◽  
Multimode Fiber ◽  
Optic Systems ◽  
International Intercomparison

A four-channel ridge wave-guide quantum well wavelength division demultiplexing detector and its optimization

1992 ◽  
Vol 70 (10-11) ◽  
pp. 931-936
Author(s):  
F. Ye ◽  
D. Moss ◽  
J. G. Simmons ◽  
P. E. Jessop ◽  
D. Landheer ◽  
...  
Keyword(s):  
Quantum Well ◽  
Stark Effect ◽  
Transverse Magnetic ◽  
Electric Polarization ◽  
Wave Guide ◽  
Single Quantum Well ◽  
Wavelength Division ◽  
Graded Index ◽  
Channel Wavelength ◽  
Better Than

We present a four-channel wavelength division demultiplexing detector using the principle of quantum confined Stark effect. This device is based on a ridge waveguide GaAs–AlGaAs single quantum well graded index separate confinement heterostructure. Four detectors are fabricated sequentially along the wave guide and their band gaps are tuned to progressively smaller values by applying progressively larger reverse bias voltages. Thus each detector responds preferably to one of the four input wavelengths. For transverse electric polarization, better than −10 dB crosstalk was achieved with a 14 nm wavelength separation. When operated as a three-channel device, better than −15 dB crosstalk was achieved with a 18 nm wavelength separation. For transverse magnetic polarization, better than −10 dB crosstalk was achieved with a 16 nm wavelength separation. We also present a theoretical study that leads to the optimization of the device.

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