Femtosecond Er:fiber laser at the central wavelength around 1530 nm

Nazwa technologii

Femtosecond Er:fiber laser at the central wavelength around 1530 nm

Abstrakt (krótki opis oferowanej technologii)

The offer includes:

(1) Confidential know-how on how to operate a femtosecond Er:fiber laser at the central wavelength around 1530 nm.

(2) Exemplary implementation of the laser cavity operating at the central wavelength around 1530 nm, including bill of materials and instructions on how to assemble the laser (documentation).

Szczegóły technologiczne i opis oferowanej technologii

Features of the proposed technology: 

• The technology allows one to build and operate a femtosecond Er:fiber laser at the central wavelength of around 1530 nm.

• The proposed method of operating the laser at the central wavelength ~1530 nm is not limited to the exemplary implementation of the cavity; it can be applied to other cavity geometries as well, including other saturable absorbers/mode-locking mechanisms.

• Technology readiness level: 4 (verification of technology components in laboratory conditions).

• Exemplary implementation of the cavity is mode-locked by a semiconductor saturable absorber mirror (SESAM).

• Exemplary implementation of the cavity features optical monitor output.

Laser output characteristics obtained in the exemplary cavity implementation:

·       Central wavelength: 1531.6 nm ± 2 nm

·       Optical bandwidth: 8.1 nm± 2 nm

·       Pulse duration: ~312 fs (sech²)

·       Repetition rate: ~60 MHz (can be adjusted)

·       Output average power: ~4 mW

·       Power stability: 0.25% RMS (over 1 h) (determined by the stability of the pump diode and its driver)

Docelowe branże dla oferowanej technologii

The laser is mode-locked using SESAM. Depending on the manufacturer’s specification, SESAM is a delicate component that may be prone to optical damage or other typical effects affecting SESAM mode-locked oscillators.

The laser output parameters may slightly differ from those provided in the example determined by the variability of the parameters of the components used for constructing the laser.

The laser is mode-locked at higher pump power (~300 mW) in multiple-pulse mode. To obtain single-pulse operation it is necessary to reduce the pump power (~150 mW). In the exemplary implementation fluence at the SESAM is below 50 µJ/cm² (in the single-pulse mode).

Poziom gotowości wdrożeniowej oferowanej technologii

TRL 4 – Przeprowadzono walidację technologii w warunkach laboratoryjnych

Poziom gotowości wdrożeniowej oferowanej technologii (old)

Testy w warunkach laboratoryjnych

Status IP

Know-how

Oferta technologiczna do pobrania

Imię i nazwisko konsultanta

Jacek Pietrzak

Numer telefonu stacjonarnego

+48 71 320 43 42

Adres e-mail

jacek.pietrzak@pwr.edu.pl