A full-duplex optical data link using lasers as transceivers

1995 ◽  
Vol 7 (9) ◽  
pp. 1060-1062 ◽  
Author(s):  
S.L. Woodward ◽  
G.E. Bodeep
Keyword(s):  
1991 ◽  
Vol 113 (3) ◽  
pp. 258-262 ◽  
Author(s):  
J. G. Stack ◽  
M. S. Acarlar

The reliability and life of an Optical Data Link transmitter are inversely related to the temperature of the LED. It is therefore critical to have efficient packaging from the point of view of thermal management. For the ODL® 200H devices, it is also necessary to ensure that all package seals remain hermetic throughout the stringent military temperature range requirements of −65 to +150°C. For these devices, finite element analysis was used to study both the thermal paths due to LED power dissipation and the thermally induced stresses in the hermetic joints due to ambient temperature changes


2011 ◽  
Vol 383-390 ◽  
pp. 6840-6845 ◽  
Author(s):  
Yong Hong Gu ◽  
Wei Huang ◽  
Qiao Li Yang

To transmit and receive data over any network successfully, a protocol is required to manage the flow. High-level Data Link Control (HDLC) protocol is defined in Layer 2 of OSI model and is one of the most commonly used Layer 2 protocol. HDLC supports both full-duplex and half-duplex data transfer. In addition, it offers error control and flow control. Currently on the market there are many dedicated HDLC chips, but these chips are neither of control complexity nor of limited number of channels. This paper presents a new method for implementing a multi-channel HDLC protocol controller using Altera FPGA and VHDL as the target technology. Implementing a multi-channel HDLC protocol controller in FPGA offers the flexibility, upgradability and customization benefits of programmable logic and also reduces the total cost of every project which involves HDLC protocol controllers.


Author(s):  
T. Yoshikawa ◽  
S. Araki ◽  
K. Miyoshi ◽  
N. Henmi ◽  
Y. Suemura ◽  
...  
Keyword(s):  

1986 ◽  
Vol 24 (5) ◽  
pp. 18-23 ◽  
Author(s):  
W. Burr
Keyword(s):  

1996 ◽  
Vol 2 (1) ◽  
pp. 55-62
Author(s):  
George Tang ◽  
Casimer DeCusatis
Keyword(s):  

2020 ◽  
Vol 2020 (1) ◽  
pp. 000169-000173
Author(s):  
Jian Li ◽  
Vincent Henneken ◽  
Marcus Louwerse ◽  
Ronald Dekker

Abstract We demonstrate a stand-alone optical data link module (ODLM) that fits in the limited space budget of smart imaging catheters. The module is based on an extension of the Flex-to-Rigid (F2R) technology platform for miniaturized system integration. The ODLM is a silicon-based interposer that comprises a commercially available Vertical Cavity Surface Emitting Laser (VCSEL), which has its electrical contacts and laser emitting spot on the same surface. With the flexible interconnects, the ODLM reroutes the flip-chipped VCSEL electrical contacts to the side that is perpendicular to the surface of the VCSEL. This enables the ODLM to be mounted on a flex-PCB and fit into the limited space in the distal tip of the smart catheter. An optical fiber that runs in parallel to the catheter shaft is inserted into the through-silicon hole (TSH) of the ODLM and self-aligned to the VCSEL for optical data transmission. The design of the ODLM and the F2R technology platform are introduced, and an ODLM demonstrator is fabricated and presented.


Author(s):  
M. Nomachi ◽  
E. Inoue ◽  
H. Kodama ◽  
Y. Yasu ◽  
H. Fujii ◽  
...  
Keyword(s):  

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