FM-laser operation of the Nd:YAG laser

Kuizenga, D.; Siegman, A. E.

doi:10.1109/jqe.1970.1076348

Cited by 54 publications

(21 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The principle of the FM laser [7] avoids the strong intensity modulation associated with the mode-locked laser solution and offers a large number of equally spaced frequency lines, spaced by the FM source frequency, over the gain spectrum of the semiconductor laser. In previous work we have realised such a laser using the Quantum Confined Stark Effect (QCSE) as the refractive index modulation mechanism, first in the GaAs/AlGaAs based material (850 nm wavelength) [8], and, more recently, in an external cavity InP based laser [9].…”

Section: Optical Frequency Comb Generation (Ofcg)mentioning

confidence: 99%

Photonic synthesis of THz signals

Seeds

Renaud

Pantouvaki

et al. 2006

2006 European Microwave Conference

View full text Add to dashboard Cite

-In this paper we present a review of our work on photonic synthesis of high spectral purity THz signals. This work includes novel developments on optical frequency comb generation (integrated, 2THz span, 25 GHz spacing), frequency locking of semiconductor lasers (1kHz channel stability, 10 ns switching time) and high speed photodetectors integrated with antennas (3dB bandwidth >108 GHz, 0.2 A/W responsivity , 148 µW output power at 457 GHz).

show abstract

Section: Optical Frequency Comb Generation (Ofcg)mentioning

confidence: 99%

Photonic synthesis of THz signals

Seeds

Renaud

Pantouvaki

et al. 2006

2006 European Microwave Conference

View full text Add to dashboard Cite

show abstract

“…As stated above FM operation laser occurs when a laser cavity phase is modulated at a frequency close to the axial frequency [6]. At this point of operation, one will observe a continuous wave (CW) output as there is no amplitude modulation and the spectrum will comprise a number of lines depending on the frequency detuning from the axial mode and the amplitude of the modulation.…”

Section: Principle Of the Fm Sourcementioning

confidence: 99%

“…At this point of operation, one will observe a continuous wave (CW) output as there is no amplitude modulation and the spectrum will comprise a number of lines depending on the frequency detuning from the axial mode and the amplitude of the modulation. When the modulation frequency is equal to the axial frequency the laser will transfer to a modelocked pulse regime [6]. The FM laser regime is generated by the phase modulation which induces coupling between the different modes of the cavity.…”

Section: Principle Of the Fm Sourcementioning

confidence: 99%

“…The principle of the FM laser [6] is an extension of the mode-locked laser solution and should offer a large number of equally spaced frequency lines, spaced by the FM source frequency, over the gain spectrum of the semiconductor laser, but without the strong intensity modulated envelope which is detrimental to some filtering schemes. In this paper we describe such a laser using Quantum Confined Stark Effect (QCSE) [7] as the refractive index modulation mechanism in a monolithic InP/InGaAsP based laser.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Monolithic MQW InP/InGaAsP-Based Comb Generator

Renaud

Pantouvaki

Grégoire

et al. 2006

2006 International Topical Meeting on Microwave Photonics

View full text Add to dashboard Cite

-We report a monolithic optical frequency comb generator using quaternary/quaternary multiple quantum well InP/InGaAsP material as phase modulator and gain medium in a Frequency Modulated (FM) laser design. The modulation was generated by quantum confined Stark effect to achieve a comb-line spacing of 24.4 GHz. The laser was fabricated using a single epitaxial growth step and quantum well intermixing to realize low loss phase and modulation sections. The resulting comb generator produces lines with a spacing exactly given by the modulation frequency, differential phase noise between adjacent lines of -82 dBc/Hz at 1 kHz offset and a comb spectrum width of up to 2 THz.

show abstract

“…One of the most important factors that determines the pulse width of mode locked lasers is the width and the shape of the spectral-emission line [1,2]. In the case of a high-pressure CO 2 laser the linewidth has been constructed from the optical cross-sections deduced from absorption measurements in a high-pressure cell containing CO 2 and the usual gas additives.…”

Section: Introductionmentioning

confidence: 99%

Mode-locked pulses in multi-atmosphere CO2 lasers

Olbertz¹,

Witteman²

1979

Optics Communications

View full text Add to dashboard Cite

The present paper deals with AM mode locking of multiatmosphere CO2 lasers. We measure the effective linewidth in the laser mixtures and deduce from these data the pulse width. The method is based on determining the maximum frequency shift from the synchronized frequency. The advantage of this method is that the results are not influenced by time constant of detector and display. The results were verified by direct measurements of the pulse widths in mixtures up till three atmospheres. The pulse widths and effective line widths of the P(20) transition are determined for the usual CO2 laser mixture up till 6 atm. We observe that helium has a large effect on the pulse width. The width decreases with increasing helium percentage at all pressures investigated. We suggest that this has to do with the overlap of a sequence-band transition and that the effect of sequence bands depend ion the helium percentage.

show abstract

FM-laser operation of the Nd:YAG laser

Cited by 54 publications

References 18 publications

Photonic synthesis of THz signals

Photonic synthesis of THz signals

A Monolithic MQW InP/InGaAsP-Based Comb Generator

Mode-locked pulses in multi-atmosphere CO2 lasers

Contact Info

Product

Resources

About