OSE Seminars
Strongly Injection-Locked Semiconductor Ring Lasers for a New Generation of Ultrafast Transmitters
Presented by Dr. Marek Osiński, Professor, Electrical and Computer Engineering & Physics and Astronomy
Optical injection locking has been actively researched for its potential to improve ultrahigh frequency performance of semiconductor lasers for both digital and analog applications. We have proposed a new injection-locking scheme, based on unidirectional whistlegeometry ring lasers (WRLs) monolithically integrated with distributed Bragg reflector (DBR) laser masters. Numerical analysis of the modulation response of a single injection-locked WRL shows a very significant reduction in the modulation efficiency between low frequency and the resonance frequency (low-frequency roll-off), which severely limits the achievable 3-dB modulation bandwidth. By combining advantages of strong injection locking (to dramatically enhance the resonance frequency) and cascaded arrangement of WRLs (to eliminate the low-frequency roll-off in modulation response), a new class of high-performance, small-size, low-cost, ultrafast, easy-to-use (over 100 GHz) functional chips is expected to emerge.
11:00 am, Thursday, August 31, 2017
Room 103, Center for High Tech Materials
Science and Technology Park - South Campus
Individuals with disabilities who need an auxiliary aid or service to attend or participate in P&A events should contact the Physics Department (phone: 505-277-2616, email: physics@unm.edu) well in advance to ensure your needs are accomodated. Event handouts can be provided in alternative accessible formats upon request. Please contact the Physics front office if you need written information in an alternative format.
A schedule of talks within the Department of Physics and Astronomy is available on the P&A web site at http://physics.unm.edu/pandaweb/events/index.php