1.3 [micro sign]m InGaP/InAsP MQW lasers with large spot-size and low loss fibre chip coupling fabricated by a standard buried heterostructure process

1996 ◽  
Vol 32 (17) ◽  
pp. 1582 ◽  
Author(s):  
N. Bouadma ◽  
A. Ougazzaden ◽  
M. Kamoun ◽  
C. Kazmierski ◽  
L. Silvestre
Keyword(s):  
Spot Size ◽  
Low Loss ◽  
Large Spot ◽  
Buried Heterostructure

Wide-Tuning-Wavelength-Range LGLC Laser with Low-Loss Dual-Core Spot Size Converter

2012 ◽  
Vol E95.C (7) ◽  
pp. 1272-1275
Author(s):  
Takanori SUZUKI ◽  
Hideo ARIMOTO ◽  
Takeshi KITATANI ◽  
Aki TAKEI ◽  
Takafumi TANIGUCHI ◽  
...  
Keyword(s):  
Wavelength Range ◽  
Spot Size ◽  
Low Loss ◽  
Dual Core

Large spot size and low-divergence angle operation of 917-nm edge-emitting semiconductor laser with an asymmetric waveguide structure

2012 ◽  
Vol 10 (6) ◽  
pp. 061401-61403 ◽  
Author(s):  
Jianxin Zhang Jianxin Zhang ◽  
Lei Liu Lei Liu ◽  
Wei Chen Wei Chen ◽  
Anjin Liu Anjin Liu ◽  
Wenjun Zhou Wenjun Zhou ◽  
...  
Keyword(s):  
Semiconductor Laser ◽  
Spot Size ◽  
Waveguide Structure ◽  
Divergence Angle ◽  
Large Spot

scholarly journals Low-loss, compact, spot-size-converter based vertical couplers for photonic integrated circuits

2019 ◽  
Vol 52 (21) ◽  
pp. 214001 ◽  
Author(s):  
P K J Singaravelu ◽  
G C R Devarapu ◽  
Sebastian A Schulz ◽  
Quentin Wilmart ◽  
Stéphane Malhouitre ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
Spot Size ◽  
Low Loss

Comparison of Sampling Techniques for In-Line Monitoring Using Raman Spectroscopy

2005 ◽  
Vol 59 (7) ◽  
pp. 934-941 ◽  
Author(s):  
Håkan Wikström ◽  
Ian R. Lewis ◽  
Lynne S. Taylor
Keyword(s):  
Raman Spectroscopy ◽  
Process Monitoring ◽  
Spot Size ◽  
Wet Granulation ◽  
Enhanced Sampling ◽  
Sampling Device ◽  
Large Spot ◽  
Unit Operations ◽  
Small Spot ◽  
Sampling Volume

Raman spectroscopy is currently of interest as a process monitoring tool for pharmaceutical unit operations. In this study, the performance characteristics of Raman spectrometers with different sampling optics have been investigated in the context of process monitoring, with emphasis being placed on assessing homogeneity in powder blends and following changes in solid-state form during wet granulation. A novel large spot non-contact Raman sampling device was compared with a traditional small spot size non-contact sampling device and an immersion probe. The large spot non-contact optics provided significant advantages over the standard systems both as a result of the enhanced sampling volume and because of the greater robustness of the system to fluctuations in the sampling distance during the wet granulation process.

The packaging of large spot-size optoelectronic devices

1997 ◽  
Vol 20 (4) ◽  
pp. 403-408 ◽  
Author(s):  
J.V. Collins ◽  
I.F. Lealman ◽  
P.J. Fiddyment ◽  
A.R. Thurlow ◽  
C.W. Ford ◽  
...  
Keyword(s):  
Optoelectronic Devices ◽  
Spot Size ◽  
Large Spot
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