IC compatible optical coupling techniques for integration of ARROW with photodetector

1998 ◽  
Vol 16 (8) ◽  
pp. 1423-1432 ◽  
Author(s):  
K. Benaissa ◽  
A. Nathan ◽  
S.T. Chu ◽  
W. Huang
Keyword(s):  
Optical Coupling ◽  
Coupling Techniques

3D Optical Coupling Techniques on Polymer Waveguides for Wafer and Board Level Integration

2017 ◽  
Author(s):  
Sebastian Lungen ◽  
Sujay Charania ◽  
Tobias Tiedje ◽  
Krzysztof Nieweglowski ◽  
Sebastian Killge ◽  
...  
Keyword(s):  
Optical Coupling ◽  
Polymer Waveguides ◽  
Coupling Techniques ◽  
Board Level

Secondary Electron Detectors, Image Quality & Contrast

1998 ◽  
Vol 4 (S2) ◽  
pp. 256-257
Author(s):  
David Scharf
Keyword(s):  
Secondary Electron ◽  
Signal To Noise Ratio ◽  
Pipe Material ◽  
Optical Coupling ◽  
Output Spectrum ◽  
Signal To Noise ◽  
Noise Characteristics ◽  
Coupling Techniques ◽  
Overall Efficiency ◽  
Scanning Electron

The Secondary Electron Detector (SED) is the first link in the chain of image formation after the initial illumination of a specimen in a Scanning Electron Microscope (SEM), therefore it is most crucial that the efficiency of the SED be as great as possible in order to maximize Signal-to- Noise Ratio (S/N) as any imperfections, inadequacies, and noise are then amplified along with the signal by the subsequent electronic amplifiers in the signal chain.In the Everhart-Thornley SED, matching the scintillator's output spectrum to the photomultiplier tube's photocathode spectral sensitivity is one factor along with other characteristics of the PM tube, like quantum efficiency and noise characteristics. Light-pipe material along with as optical coupling techniques are another factor which determines the overall efficiency of converting SE electron strikes on the scintillator to a video output signal.

Antenna Structures for Optical Coupling in Quantum-Well Infrared Detectors

1998 ◽  
Author(s):  
William A. Beck ◽  
Mark S. Mirotznik ◽  
Thomas S. Faska
Keyword(s):  
Quantum Well ◽  
Infrared Detectors ◽  
Optical Coupling

scholarly journals Innovations in optical coupling of the KSTAR electron cyclotron emission imaging diagnostic

2010 ◽  
Vol 81 (10) ◽  
pp. 10D909 ◽  
Author(s):  
T. Liang ◽  
B. Tobias ◽  
X. Kong ◽  
C. W. Domier ◽  
N. C. Luhmann ◽  
...  
Keyword(s):  
Electron Cyclotron ◽  
Optical Coupling ◽  
Electron Cyclotron Emission ◽  
Cyclotron Emission ◽  
Electron Cyclotron Emission Imaging

scholarly journals Inverted p-down Design for High-Speed Photodetectors

Photonics ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 39
Author(s):  
Masahiro Nada ◽  
Fumito Nakajima ◽  
Toshihide Yoshimatsu ◽  
Yasuhiko Nakanishi ◽  
Atsushi Kanda ◽  
...  
Keyword(s):  
Amplitude Modulation ◽  
Optical Communications ◽  
High Speed ◽  
Pulse Amplitude ◽  
Avalanche Photodiode ◽  
Device Fabrication ◽  
Pulse Amplitude Modulation ◽  
Optical Coupling ◽  
Pin Photodiodes

We discuss the structural consideration of high-speed photodetectors used for optical communications, focusing on vertical illumination photodetectors suitable for device fabrication and optical coupling. We fabricate an avalanche photodiode that can handle 100-Gbit/s four-level pulse-amplitude modulation (50 Gbaud) signals, and pin photodiodes for 100-Gbaud operation; both are fabricated with our unique inverted p-side down (p-down) design.

Multi-band planar diplexers with sub-sets of frequency-contiguous transmission bands

2021 ◽  
pp. 1-11
Author(s):  
Roberto Gómez-García ◽  
Li Yang ◽  
José-María Muñoz-Ferreras ◽  
Dimitra Psychogiou
Keyword(s):  
High Frequency ◽  
Transmission Band ◽  
Satellite Communications ◽  
Proof Of Concept ◽  
Transmission Zeros ◽  
Cascade Connection ◽  
Coupling Techniques ◽  
In Series ◽  
Mobile Satellite ◽  
Multi Band

Abstract A class of multi-band planar diplexer with sub-sets of frequency-contiguous transmission bands is reported. Such a radio frequency (RF) device is suitable for lightweight high-frequency receivers aimed at multi-band/multi-purpose mobile satellite communications systems. It consists of two channelizing filters, each of them being made up of the in-series cascade connection of replicas of a constituent multi-passband/multi-embedded-stopband filtering stage. This building filtering stage defines a multi-passband transfer function for each channel, in which each main transmission band is split into various sub-passbands by the multi-stopband part. In this manner, each split passband gives rise to several sub-passbands that are imbricated with their counterpart ones of the other channel. The theoretical RF operational principles of the proposed multi-band diplexer approach with sub-sets of imbricated passbands are detailed by means of a coupling–routing–diagram formalism. Besides, the generation of additional transmission zeros in each channelizing filter for higher-selectivity realizations by exploiting cross-coupling techniques into it is also detailed. Furthermore, for experimental demonstration purposes, a microstrip proof-of-concept prototype of second-order octo-band diplexer in the frequency range of 1.5–2.5 GHz that consists of two quad-band channelizing filters with pairs of imbricated passbands is developed and characterized.

Sign in / Sign up

Export Citation Format

Share Document