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Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography

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Published on: May 15, 2017

Athermal laser design.

Jock Bovington, Sudharsanan Srinivasan, John E Bowers

|October 17, 2014

Summary

This summary is machine-generated.

This study presents integrated athermal components for lasers, offering an alternative to power-intensive thermoelectric controllers (TECs). These solutions are crucial for developing uncooled silicon transmitters.

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Area of Science:

Photonics and Optical Engineering
Integrated Optics
Laser Technology

Background:

Thermo-electric controllers (TECs) are commonly used for laser thermal stabilization but are power-intensive.
Off-chip wavelength lockers and lookup tables add complexity and cost to tunable laser systems.
There is a need for power-efficient and compact thermal management solutions in optical transmitters.

Purpose of the Study:

To explore circuit-based and waveguide-based athermalization schemes for lasers.
To demonstrate design examples of athermalized lasers using integrated athermal components.
To present an alternative to traditional TECs and off-chip wavelength management for tunable lasers.

Main Methods:

Investigated circuit-based athermalization techniques.
Developed waveguide-based athermalization strategies.
Designed and exemplified athermalized lasers incorporating fully integrated athermal components.

Main Results:

Successfully designed athermalized lasers using integrated components.
Demonstrated the feasibility of circuit and waveguide-based athermalization.
Showcased a viable alternative to TECs and external wavelength lockers.

Conclusions:

Integrated athermal components offer a power-efficient solution for laser thermal stabilization.
These solutions are critical for the advancement of uncooled silicon transmitters.
The proposed athermalization schemes reduce complexity and power consumption in tunable laser systems.