Projects per year
Abstract
We measure the nonlinear refractive index of an antiresonant 1050 nm semiconductor disk laser (SDL) gain medium using a reflection-type z-scan system, with a 1064 nm, 10-ps-pulse laser as a probe, and a fiber-coupled 808 nm diode pump laser for carrier injection. Empirically, the nonlinear refractive index is found to depend approximately linearly on applied pump intensity, having a value of −1.5(0.2) × 10−12 cm2/W at zero excitation but increasing to take on positive values at typical SDL operating conditions. The focal lengths of corresponding Kerr lenses calculated using typical SDL pulse intensities and spot sizes are sufficiently short to be comparable to SDL cavity mirrors, implying that Kerr lens modelocking may be responsible for the behavior described in recent reports of self-mode-locked SDLs.
Original language | English |
---|---|
Article number | 011105 |
Journal | Applied Physics Letters |
Volume | 106 |
Early online date | 9 Jan 2015 |
DOIs | |
Publication status | Published - 9 Jan 2015 |
Fingerprint
Dive into the research topics of 'Z-scan measurements of the nonlinear refractive index of a pumped semiconductor disk laser gain medium'. Together they form a unique fingerprint.Projects
- 1 Finished
-
Tuneable Gigahertz Mode Spaced Frequency Combs (Fellowship)
Wilcox, K. (Investigator)
Engineering and Physical Sciences Research Council
1/10/13 → 28/02/18
Project: Research
Student theses
-
On the phenomenon and potential applications of pulsed laser-reshaped silver nanoparticles embedded in soda-lime glass
Tyrk, M. A. (Author), Abdolvand, A. (Supervisor) & Gillespie, W. A. (Supervisor), 2018Student thesis: Doctoral Thesis › Doctor of Philosophy
File