Luka Černe (Avtor), Peter Šušnjar (Avtor), Rok Petkovšek (Avtor)

Povzetek

We present here a detailed study of a compact and tunable nonlinear phase pre-compensation method based on a tunable chirped fiber Bragg grating (TCFBG) applied to an ultrafast fiber laser system. Frequency resolved optical gating (FROG) measurements reveal a significant variation in the output pulse shape due to the variation in accumulated nonlinear phase for varying pulse energy and repetition rate (even if the pulse energy is kept constant) of the laser system. The TCFBG, used as a stretcher and a pre-compensating element in this chirped fiber amplification (CPA) system, eliminates the need for additional pulse shaping components which greatly simplifies the system for tunable pre-compensation. We demonstrate an efficient pre-compensation of the accumulated nonlinear phase between 0 and 14 rad resulting in pulses with a constant pulse duration and Strehl ratio over a broad operating regime of the laser with repetition rates ranging from 100 kHz up to 30 MHz and pulse energies spanning from 1 [micro]J up to 70 [micro]J.

Ključne besede

nonlinear phase;femtosecond laser;self-phase modulation;CPA;FROG;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FS - Fakulteta za strojništvo
UDK: 535(045)
COBISS: 36354563 Povezava se bo odprla v novem oknu
ISSN: 0030-3992
Št. ogledov: 32
Št. prenosov: 8
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: nelinearna faza;femtosekundarni laser;samo-modulacija faze;
Vrsta dela (COBISS): Članek v reviji
Konec prepovedi (OpenAIRE): 2022-11-05
Strani: str. 1-9
Zvezek: ǂVol. ǂ135
Čas izdaje: Mar. 2021
DOI: 10.1016/j.optlastec.2020.106706
ID: 15899494