Design of III-V submicron lasers with reversed ridge waveguides on patterned Si/SOI substrates

2021 ◽  
Author(s):  
Zhengxia Yang ◽  
Wenyu Yang ◽  
Mengqi Wang ◽  
Xuliang Zhou ◽  
Hongyan Yu ◽  
...  
Keyword(s):  
Ridge Waveguides ◽  
Soi Substrates

Low-loss bends in planar optical ridge waveguides

1988 ◽  
Vol 24 (16) ◽  
pp. 998 ◽  
Author(s):  
E.C.M. Pennings ◽  
G.H. Manhoudt ◽  
M.K. Smit
Keyword(s):  
Low Loss ◽  
Ridge Waveguides

Fabrication and characterization of buried silicide layers on SOI substrates for BICMOS-applications

2005 ◽  
Vol 82 (3-4) ◽  
pp. 454-459 ◽  
Author(s):  
S. Zimmermann ◽  
Q.T. Zhao ◽  
B. Trui ◽  
M. Wiemer ◽  
C. Kaufmann ◽  
...  
Keyword(s):  
Fabrication And Characterization ◽  
Soi Substrates

DFB Lasers with Tilted Waveguide for Multi-Wavelength Generation

2007 ◽  
Vol 31 ◽  
pp. 36-38 ◽  
Author(s):  
Lip Fah Chong ◽  
Jing Hua Teng ◽  
Ee Leong Lim ◽  
Norman Soo Seng Ang ◽  
J.R. Dong ◽  
...  
Keyword(s):  
Single Mode ◽  
Distributed Feedback ◽  
Couple Mode ◽  
Threshold Condition ◽  
Couple Mode Theory ◽  
Gain Margin ◽  
Ridge Waveguides ◽  
Multi Wavelength ◽  
Dfb Laser ◽  
Lasing Frequency

In this paper, we present the theoretical investigation of index-coupled distributed feedback (DFB) laser with tilted single mode ridge waveguides. By tilting part of the ridge waveguide in various degrees, DFB laser with manifold effective grating periods can be realized. The structure is analyzed using couple mode theory in matrix form based on threshold analysis. Important parameters of DFB laser like resonant frequency and threshold gains are obtained by solving the eigen-equation. The results indicate not only that the lasing frequency is modulated by the waveguide titling angle, but also large Gain Margin (GM) can be achieved at the threshold condition which enhance the stable single mode operation in index-coupled DFB laser.

Design of a MEMS Resonant Wind Sensor on Airplane Wing

2013 ◽  
Vol 562-565 ◽  
pp. 436-440
Author(s):  
Chao Wei Si ◽  
Guo Wei Han ◽  
Jin Ning ◽  
Wei Wei Zhong ◽  
Fu Hua Yang
Keyword(s):  
High Vacuum ◽  
Pressure Change ◽  
Wind Pressure ◽  
Damping Factor ◽  
Deep Reactive Ion Etching ◽  
Mems Resonator ◽  
Mems Resonators ◽  
Element Simulation ◽  
Airplane Wing ◽  
Soi Substrates

A new kind of wind sensor made up of MEMS resonators is designed in the paper capable of sensing the lift, the resistance and the turbulence of airplane wings by mounting on the surface. The designed wind sensor is made up of four MEMS wind pressure gauges fixed around a square wind resistance block which used to block the wind to change the wind pressure on the surface, and the change of wind pressure is detected by MEMS wind pressure gauges to reveal the air condition on the surface of the airplane wings. As known, a MEMS resonator is a second-order resonant system whose damping factor is mainly dependent on the air pressure, and the characteristic is often used to detecting the airtightness of a sealed chamber for the damping factor is sensitive under high vacuum, while a MEMS resonator with the damping factor sensitive at atmospheric pressure is designed in this paper for sensing wind pressure change, and the MEMS resonator is manufactured on SOI substrates with deep reactive ion etching technology. Also relations between the wind pressure change and the wind speed around a block at atmosphere is revealed by finite element simulation. Compared to traditional wind sensors such as anemometers and Venturi tubes, the designed MEMS wind sensor with a very small size is suitable to mount on different zones of a wing with a large amount to monitor the air condition and have less influence on air flow.

Point-by-point inscription of narrow-band gratings in polymer ridge waveguides

2007 ◽  
Vol 90 (2) ◽  
pp. 273-276 ◽  
Author(s):  
A.J. Lee ◽  
A. Rahmani ◽  
J.M. Dawes ◽  
G.D. Marshall ◽  
M.J. Withford
Keyword(s):  
Narrow Band ◽  
Ridge Waveguides

scholarly journals On-chip Photonic Synapses Based on Slot-ridge Waveguides with PCMs for In-memory Computing

2021 ◽  
pp. 1-1
Author(s):  
Huan Zhang ◽  
Beiju Huang ◽  
Zanyun Zhang ◽  
Chuantong Cheng ◽  
Zan Zhang ◽  
...  
Keyword(s):  
Ridge Waveguides ◽  
On Chip

Engineering silicon-on-insulator (SOI) substrates for hybrid orientation technologies (HOT)

2009 ◽  
Author(s):  
T. Signamarcheix ◽  
B. Biasse ◽  
A-M. Papon ◽  
E. Nolot ◽  
B. Ghyselen ◽  
...  
Keyword(s):  
Silicon On Insulator ◽  
Soi Substrates

MODE DEGENERACY IN CIRCULAR CYLINDRICAL RIDGE WAVEGUIDES

2009 ◽  
Vol 9 ◽  
pp. 75-83 ◽  
Author(s):  
Alan J. Sangster ◽  
John Grant
Keyword(s):  
Ridge Waveguides
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