Advances in optical path crossconnect systems using planar-lightwave circuit-switching technologies

2003 ◽  
Vol 41 (9) ◽  
pp. 54-57 ◽  
Author(s):  
S. Aisawa ◽  
A. Watanabe ◽  
T. Goh ◽  
Y. Takigawa ◽  
M. Koga ◽  
...  
Keyword(s):  
Optical Path ◽  
Circuit Switching ◽  
Planar Lightwave Circuit ◽  
Planar Lightwave

Laser Doppler Velocimetry Using Integrated Waveguide Technology

2010 ◽  
Vol 36 ◽  
pp. 323-328
Author(s):  
Koichi Maru ◽  
Yusaku Fujii
Keyword(s):  
Laser Doppler Velocimetry ◽  
Optical Path Length ◽  
Optical Path ◽  
Laser Doppler ◽  
Optical Systems ◽  
Rigid Object ◽  
Uncertainty In Measurement ◽  
Sources Of Uncertainty ◽  
Planar Lightwave Circuit ◽  
Planar Lightwave

Integrated laser Doppler velocimeters (LDVs) using integrated waveguide technology are reviewed. LDVs have been widely used to measure the velocity of a fluid flow or rigid object in various research and industries. However, bulk optical systems used in conventional measurement need special care from temperature change and vibration, which become the expected sources of uncertainty in measurement, due to large optical path length. Therefore, the optical system should be more compact. The LDV can be drastically reduced by using a planar lightwave circuit (PLC). The possibility for realizing several types of novel integrated LDVs, including a wavelength-insensitive LDV, a scanning LDV and a multi-point LDV, is discussed.

Reconfigurable OTDM Demultiplexing Using FWM in Highly Nonlinear Fiber and a Tunable Planar Lightwave Circuit

2012 ◽  
Vol 24 (1) ◽  
pp. 13-15 ◽  
Author(s):  
Payman Samadi ◽  
Lawrence R. Chen ◽  
Irina A. Kostko ◽  
Patrick Dumais ◽  
Claire L. Callender ◽  
...  
Keyword(s):  
Highly Nonlinear Fiber ◽  
Highly Nonlinear ◽  
Planar Lightwave Circuit ◽  
Nonlinear Fiber ◽  
Planar Lightwave

High frequency electrical circuits on a planar lightwave circuit platform

1996 ◽  
Vol 14 (5) ◽  
pp. 806-811 ◽  
Author(s):  
S. Mino ◽  
T. Ohyama ◽  
T. Hashimoto ◽  
Y. Akahori ◽  
K. Yoshino ◽  
...  
Keyword(s):  
High Frequency ◽  
Electrical Circuits ◽  
Planar Lightwave Circuit ◽  
Planar Lightwave

Proposal of Compact Optical System Using Planar Lightwave Circuit for Precision Measurement Based on Levitation Mass Method

2010 ◽  
Vol 36 ◽  
pp. 329-336
Author(s):  
Koichi Maru ◽  
Yusaku Fujii
Keyword(s):  
Optical System ◽  
Precision Measurement ◽  
Optical Interferometer ◽  
Planar Surface ◽  
Semiconductor Substrate ◽  
Optical Elements ◽  
Planar Lightwave Circuit ◽  
Planar Lightwave

A method for reducing the size and cost of optical system for precision measurement based on the Levitation Mass Method (LMM) is proposed. In the LMM, a mass levitated using a pneumatic linear bearing with sufficiently small friction is made to collide with the object being tested. The velocity and acceleration of the mass are measured using a compact optical interferometer. The size of the optical system can be drastically reduced by using a planar lightwave circuit (PLC), in which several optical elements are arranged on a planar surface of a silica or semiconductor substrate. Several applications of the PLC to precision measurement will be discussed.

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