Professor Klotzkin's research interests are in the field of optoelectronics, particularly active photonic devices, including:
- High-speed telecommunications lasers
- Free space modulating retroreflectors
- Integrated opto-electronic devices
- Quantum dot lasers and laser dynamics
- Photonic-band-gap based devices
- Organic luminescent devices
- Microfluorescence detectors
Featured Research Tool
Glaparex, created by the Klotzkin group
- Based on Laparex
- Fits measured distributed feedback laser spectra to extract coupling parameters, gain, index and all other quantities
- All variables can be fixed or allowed to be optimized
- Estimates single mode yield and slope efficiency distribution
- Models partially grated and quarter-wave-shifted devices
Download here as a stand-alone application
Prior Work
- A green organic luminescent device based on organic molecular transitions.
- A red organic luminescent device based on atomic rare-earth emission.
- Simulation of a combination of a conventional waveguide with a PBG mirror for small area, low loss mirrors
- Patterned Bragg reflector/conventional waveguide interface
- A 10 GB/s eye pattern from an integrated spot-size-converted laser demonstrating a wide-open eye.
- A cross-sectional SEM of an integrated directly modulated, distributed telecommunications laser with a spot-size converter showing: a) a junction between active and spot-size-converter region, b) back-facet side, and c) front-facet side
- Polarizer grid array made with interference lithography on a 50micron scale illuminated with polarized 1.55 micron light.
