Offset phase locking of Er,Yb:glass laser eigenstates for RF photonics applications

Alouini, Mehdi; Benazet, B.; Vallet, Marc; Brunel, Marc; Bin, Philippe Di; Bretenaker, Fabien; Floch, A. Le; Thony, Philippe

doi:10.1109/68.917855

Cited by 82 publications

(56 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Thus, the Brillouin oscillator constitutes a VCO, and the device can be configured into a phaselock-loop control design (that is, closed-loop operation). Phaselock-loop control of optically generated microwave tones has been previously accomplished by reference to a high-performance microwave reference [46][47][48] . In these earlier works, the objective was to use the the high-stability microwave electrical reference to stabilize the optical generated tone.…”

Section: Resultsmentioning

confidence: 99%

Microwave synthesizer using an on-chip Brillouin oscillator

2013

View full text Add to dashboard Cite

Low-phase-noise microwave oscillators are important to a wide range of subjects, including communications, radar and metrology. Photonic-based microwave-wave sources now provide record, close-to-carrier phase-noise performance, and compact sources using microcavities are available commercially. Photonics-based solutions address a challenging scaling problem in electronics, increasing attenuation with frequency. A second scaling challenge, however, is to maintain low phase noise in reduced form factor and even integrated systems. On this second front, there has been remarkable progress in the area of microcavity devices with large storage time (high optical quality factor). Here we report generation of highly coherent microwaves using a chip-based device that derives stability from high optical quality factor. The device has a record low electronic white-phase-noise floor for a microcavity-based oscillator and is used as the optical, voltage-controlled oscillator in the first demonstration of a photonic-based, microwave frequency synthesizer. The synthesizer performance is comparable to mid-range commercial devices.

show abstract

Section: Resultsmentioning

confidence: 99%

Microwave synthesizer using an on-chip Brillouin oscillator

2013

View full text Add to dashboard Cite

show abstract

“…A coherent source emitting two optical frequencies with a difference tunable over a wide range and having a high degree of correlation between their fluctuations could find applications in domains such as ultra-stable atomic clocks [1,2], pump-probe experiments, generation of high-purity optically-carried radio frequency (RF) signals useful for microwave photonics [3,4], and metrology [5]. The dual-frequency laser, sustaining two orthogonal linear polarizations with a tunable frequency difference can perfectly fit the above mentioned applications.…”

Section: Introductionmentioning

confidence: 99%

Intensity- and phase-noise correlations in a dual-frequency vertical-external-cavity surface-emitting laser operating at telecom wavelength

Baili

Bouchoule³

et al. 2015

Phys. Rev. A

View full text Add to dashboard Cite

The amplitude and phase noises of a dual-frequency vertical-external-cavity surface-emitting laser (DF-VECSEL) operating at telecom wavelength are theoretically and experimentally investigated in detail. In particular, the spectral behavior of the correlation between the intensity noises of the two modes of the DF-VECSEL is measured. Moreover, the correlation between the phase noise of the radio-frequency (RF) beatnote generated by optical mixing of the two laser modes with the intensity noises of the two modes is investigated. All these spectral behaviors of noise correlations are analyzed for two different values of the nonlinear coupling between the laser modes. We find that to describe the spectral behavior of noise correlations between the laser modes, it is of utmost importance to have a precise knowledge about the spectral behavior of the pump noise, which is the dominant source of noise in the frequency range of our interest (10 kHz to 35 MHz). Moreover, it is found that the noise correlation also depends on how the spatially separated laser modes of the DF-VECSEL intercept the noise from a multi-mode fiber-coupled laser diode used for pumping both the laser modes. To this aim, a specific experiment is reported, which aims at measuring the correlations between different spatial regions of the pump beam. The experimental results are in excellent agreement with a theoretical model based on modified rate equations.

show abstract

“…In the past years, reports on microwave carrier generation by using a DFL were mainly focused on very low phase noise [48,49] or large tunability [15,50]. However, there seems to be very little attention to some crucial requirements of the generated carrier, namely its short term as well as long-term frequency stability.…”

Section: Discussionmentioning

confidence: 99%

Carrier generation using a dual-frequency distributed feedback waveguide laser for phased array antenna (PAA)

Khan

Islam

Sarowar

et al. 2017

J. Eur. Opt. Soc.-Rapid Publ.

View full text Add to dashboard Cite

Background: Carrier generation based on optical heterodyning techniques where a beat signal is generated from the mixing of two light sources can be interesting solution due to ease on tunability. The free running heterodyning scheme benefits with a very wide tuning capability and the generated carrier can be freely adjusted. However, the drawbacks come in the form of frequency stability. Heterodyning of two optical frequencies coming from a single laser cavity has shown its potential on improvement of frequency stability. Methods: The impact of the laser parameters (i.e., optical power and linewidth) on the quality of the generated carrier (i.e., phase/frequency stability and carrier-to-noise ratio) is analyzed for a 25 × 64 elements PAA system. An optically generated carrier signal using a dual-frequency distributed feedback waveguide laser in ytterbium doped aluminum oxide (Al 2 O 3 :Yb 3+ ) is analyzed and experimentally demonstrated in this paper. The carrier signal is used for downconversion of the signal received from a phased array antenna (PAA) of a DVB-S (Digital Video Broadcasting-Satellite) system. Results: An optical frequency locked loop (OFLL) to stabilize the generated carrier is implemented which results in a microwave frequency at ∼14 GHz with a phase noise of -75 dBc/Hz at 1 MHz offset from the center frequency and gives a loop settling time of 12 μs. By using the proposed OFLL, the long term and the short term frequency stability of the generated carrier has an Allan deviation of more than 1 × 10 −10 for an averaging time of 1000 s and a standard deviation of 39.4 kHz, respectively. The lasers linewidth should be in the order of tens of Hz, with a maximum relative intensity noise (RIN) of -107 dB/Hz and a minimum optical power of 0.94 mW. Conclusions: The optical carrier generation by OFLL using a DFL to comply with the requirements of the standard carrier used in commercial LNBs has been investigated. The detailed analysis of the OFLL scheme is presented. Specifications requirement on carrier power, linewidth and relative intensity noise of the optically generated carrier have been addressed. The optical carrier generation is experimentally demonstrated and the requirements on CNR have been determined by measuring the noise floor and the optical carrier power. The measured values are compared with the calculated values and found to be very close.

show abstract

Offset phase locking of Er,Yb:glass laser eigenstates for RF photonics applications

Cited by 82 publications

References 13 publications

Microwave synthesizer using an on-chip Brillouin oscillator

Microwave synthesizer using an on-chip Brillouin oscillator

Intensity- and phase-noise correlations in a dual-frequency vertical-external-cavity surface-emitting laser operating at telecom wavelength

Carrier generation using a dual-frequency distributed feedback waveguide laser for phased array antenna (PAA)

Contact Info

Product

Resources

About