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Vertical cavity surface emitting laser device

A kind of equipment and laser cavity technology, applied in the field of high-speed vertical cavity surface emitting laser equipment, can solve the problems of increasing pulse rise time, limiting modulation signal bandwidth, inductance loss, etc., and achieve the effect of eliminating inductance, high speed and reducing manufacturing cost

Pending Publication Date: 2021-03-19
AMS SENSORS ASIA PTE LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

In either case, the connection introduces inductance or other losses, which may limit the bandwidth of the modulating signal and increase the pulse rise time

Method used

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  • Vertical cavity surface emitting laser device
  • Vertical cavity surface emitting laser device
  • Vertical cavity surface emitting laser device

Examples

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Embodiment Construction

[0020] This disclosure describes a high speed VCSEL device in which both the anode surface mount contact and the cathode surface mount contact are located on the same side of the device, in particular on the opposite side of the VCSEL from which the output beam is emitted. The VCSEL structures described herein allow direct bonding (eg, by flip-chip bonding) of surface-mountable VCSELs to, eg, driver ICs. In this way, wire bond inductance and losses due to the use of microstrip connections can be eliminated. Furthermore, in cases where microstrip or stripline connections are used, the method described here can still eliminate wire bond inductance by bonding the VCSEL directly to the microstrip circuit.

[0021] Such as figure 1 As shown, a top emitting VCSEL device 100 includes a substrate 101 on which epitaxial layers for the VCSEL structure are grown, for example by metal organic chemical vapor deposition (MOCVD) or other deposition processes. The VCSEL laser cavity is form...

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Abstract

A VCSEL device includes a substrate and a laser cavity that includes a gain section disposed between first and second reflectors. The VCSEL device is operable to emit light through the first end of the VCSEL device. The VCSEL device includes an anode surface mount contact and a cathode surface mount contact each of which is disposed at the second end of the VCSEL device opposite to the first end of the VCSEL device.

Description

technical field [0001] The present disclosure relates to high speed vertical cavity surface emitting laser (VCSEL) devices. Background technique [0002] There is a growing need for high-speed digital communications over fiber optic links. High-speed digital communications have been deployed in traditional telecommunication systems. In recent years, high-speed digital communication has been increasingly used in short-distance links. These links include short-distance high-speed data links for computers, high-speed Ethernet and high-speed Internet, including high-bandwidth local services to the home. There is also great interest in these high-speed devices for short-link data transfer applications in cloud computing. Such applications include data links between computers and installations for large servers. The development of higher power, higher speed VCSEL devices can facilitate and potentially broaden the application of high speed data links. [0003] Certain applicat...

Claims

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Application Information

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IPC IPC(8): H01S5/042H01S5/183H01S5/02345H01S5/02335H01S5/0239
CPCH01S5/183H01S5/04256H01S5/04257H01S5/0208H01S5/0234H01S5/0237H01S5/0261H01S5/18361
Inventor 劳伦斯.沃特金斯让-弗朗西斯.苏仁C.高希
Owner AMS SENSORS ASIA PTE LTD
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