Watt-level all polarization-maintaining femtosecond fiber laser source at 1100 â
nm.
Opt Express
; 32(6): 9625-9633, 2024 Mar 11.
Article
in En
| MEDLINE
| ID: mdl-38571192
ABSTRACT
We demonstrate a compact watt-level all polarization-maintaining (PM) femtosecond fiber laser source at 1100â
nm. The fiber laser source is seeded by an all PM fiber mode-locked laser employing a nonlinear amplifying loop mirror. The seed laser can generate stable pulses at a fundamental repetition rate of 40.71â
MHz with a signal-to-noise rate of >100â
dB and an integrated relative intensity noise of only â¼0.061%. After two-stage external amplification and pulse compression, an output power of â¼1.47 W (corresponding to a pulse energy of â¼36.1 nJ) and a pulse duration of â¼251 fs are obtained. The 1100â
nm femtosecond fiber laser is then employed as the excitation light source for multicolor multi-photon fluorescence microscopy of Chinese hamster ovary (CHO) cells stably expressing red fluorescent proteins.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Opt Express
/
Opt. express
/
Optics express
Journal subject:
OFTALMOLOGIA
Year:
2024
Type:
Article