NDLI: Generation of tuneable and ultrahigh repetition rate by fractional Talbot effect in frequency-shifted feedback lasers

Content Provider	IEEE Xplore Digital Library
Author	de Chatellus, H.G. Jacquin, O. Hugon, O. Lacot, W.G.E.
Copyright Year	2013
Description	Author affiliation: Lab. Interdisciplinaire de Phys., UJF, St. Martin d'Hères, France (de Chatellus, H.G.; Jacquin, O.; Hugon, O.; Lacot, W.G.E.)
Abstract	Summary form only given. We present an experimental demonstration of a novel technique for the generation of Fourier transform-limited pulses at tuneable and possibly ultrahigh repetition rates, limited only by the spectral bandwidth of the laser. Our proposal is based on a frequency shifted feedback (FSF) laser injected with a single-mode laser. Recall that a FSF laser consists in a laser cavity with an internal frequency shifter (usually an acousto-optics frequency shifter or AOFS): each time a photon makes a roundtrip in the cavity, its frequency is increased by twice the frequency of the acoustic wave in the AOFS (in the case of a linear cavity). When seeded with a single-mode laser, the output of the FSF laser consists in a frequency comb with a mode spacing equal to the shift frequency $f_{s}:$ the frequency of the $n^{th}$ mode is $f_{n}$ = $f_{0}$ + $nf_{s}$ where $f_{0}$ is the frequency of the seed laser. However contrary to mode-locked frequency combs where all modes share the same phase, the phases of the modes at the output of the FSF laser are quadratic with n and are given by $πn(n+1)f_{s}/f_{c},$ where $f_{c}$ is the free spectral range of the FSF cavity [1]. Early numerical simulations predicted the generation of Fourier transform-limited pulses when the frequency shift per roundtrip and the cavity free spectral range are in the ratio of two integers, that is $f_{s}/f_{c}$ = p/q, p and q being coprime integers [2]. In this case the repetition rate is equal to $qf_{s}$ $(=pf_{c}).$ We demonstrated experimentally this property for large values of p and q, by implementing a FSF dye cavity seeded with a monochromatic (dye) laser. The spectral bandwidth of the comb is 150 GHz. By adjusting the length of the FSF laser cavity (i.e. $f_{c}),$ we have demonstrated the generation of 6 ps pulses at a repetition rate tuneable by more than two orders of magnitude, between 240 MHz and 47 GHz, by steps of 80 MHz. This result is interpreted in terms of temporal fractional Talbot effect [3] and described analytically. A very good agreement with the experiment is obtained. In particular we characterize the phases of the optical pulses. This work offers important novel perspectives for the generation of ultrahigh repetition rates (GHz to THz) for various applications in data processing, opt-electronics, THz generation and spectroscopy of metallic nanoparticles.
Sponsorship	Eur. Phys. Soc.
Starting Page	1
Ending Page	1
File Size	164626
Page Count	1
File Format	PDF
e-ISBN	9781479905942
DOI	10.1109/CLEOE-IQEC.2013.6801123
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-05-12
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Talbot effect Time-frequency analysis Laser mode locking Laser feedback Cavity resonators Laser tuning
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Pulse repetition rate control of asynchronous mode-locked fiber lasers without changing the cavity length

257 MHz pulse repetition rate from a modelocked VECSEL

Transient state of wavelength tuning in mode-locked lasers with a dispersive cavity

Ultra-low repetition rate mode-locked semiconductor disk laser

Prospects of high energy ultrashort pulse generation with frequency shifted feedback fiber oscillators

High-performance mode-locking with up to 50 GHz repetition rate from integrable VECSELs

External-Cavity Mode-Locked Quantum-Dot Laser Diodes for Low Repetition Rate, Sub-Picosecond Pulse Generation

Displacement Sensing by Repetition Rate Pulling in a Passively Mode Locked Laser Under Feedback

Repetition rate control of optical self-injected passively mode-locked quantum-well lasers: experiment and simulation

Generation of tuneable and ultrahigh repetition rate by fractional Talbot effect in frequency-shifted feedback lasers

Similar Documents

Pulse repetition rate control of asynchronous mode-locked fiber lasers without changing the cavity length

257 MHz pulse repetition rate from a modelocked VECSEL

Transient state of wavelength tuning in mode-locked lasers with a dispersive cavity

Ultra-low repetition rate mode-locked semiconductor disk laser

Prospects of high energy ultrashort pulse generation with frequency shifted feedback fiber oscillators

High-performance mode-locking with up to 50 GHz repetition rate from integrable VECSELs

External-Cavity Mode-Locked Quantum-Dot Laser Diodes for Low Repetition Rate, Sub-Picosecond Pulse Generation

Displacement Sensing by Repetition Rate Pulling in a Passively Mode Locked Laser Under Feedback

Repetition rate control of optical self-injected passively mode-locked quantum-well lasers: experiment and simulation

Generation of tuneable and ultrahigh repetition rate by fractional Talbot effect in frequency-shifted feedback lasers