Robert Rockmore
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View article: Electro-optic time transfer with femtosecond stability
Electro-optic time transfer with femtosecond stability Open
Optical two-way time and frequency transfer (O-TWTFT) is an enabling technology that has applications ranging from fundamental investigations of relativity to the operation of global navigation satellite systems. Linear-optical-sampling (L…
View article: Electro-optic time transfer with femtosecond stability
Electro-optic time transfer with femtosecond stability Open
Optical two-way time and frequency transfer is an enabling technology that has applications ranging from fundamental investigations of relativity to the operation of global navigation satellite systems. While fiber frequency combs have dem…
VECSEL Frequency Combs for Mid-Infrared Spectroscopy Open
Frequency combs with high repetition rates above 1 GHz offer a number of advantages over more common Mhz combs, such as higher power per comb line, more easily resolvable comb teeth, and higher time resolution for sensing applications. Ver…
VECSEL-based frequency comb in the MIR Open
The mid-infrared (MIR) region above 3 microns is of great interest for spectroscopic applications. Because it is difficult to produce modelocked laser sources that emit natively in this region, difference frequency generation (DFG) is a po…
Supercontinuum generation and beatnote detection using ultrafast VECSEL seed oscillators Open
We present preliminary results showing the potential of VECSEL technology for the generation of high power coherent supercontinuum. Among these results, we demonstrate a stable output power of 16 W with a pulse duration of 71 fs and a repe…
High power sub-200fs pulse generation from a colliding pulse modelocked VECSEL Open
We present a passive and robust mode-locking scheme for a Vertical External Cavity Surface Emitting Laser (VECSEL). We placed the semiconductor gain medium and the semiconductor saturable absorber mirror (SESAM) strategically in a ring cav…
Colliding pulse mode locking of vertical-external-cavity surface-emitting laser Open
High-power semiconductor disk lasers producing short pulses at high repetition rates are attractive for numerous applications. The peak power achievable is often limited by the stability of the mode-locked regime as harmonic mode locking o…