Temperature-Tolerant Wavelength-Setting and -Stabilization in a Polymer-Based Tunable DBR Laser

Happach, Magnus; Felipe, David de; Friedhoff, Victor Nicolai; Kleinert, Moritz; Zawadzki, C.; Rehbein, W.; Brinker, W.; Möhrle, Martin G.; Keil, Norbert; Hofmann, Werner; Schell, Martin

doi:10.1109/jlt.2017.2652223

Cited by 13 publications

(10 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The excited wavelength of the laser can be tuned by applying heating power at the phase P Ph and the Bragg section P Br . The Laser was tuned continuously as already demonstrated in [27]. The feedback section is located between the right end of the Bragg section and the output facet.…”

Section: Resultsmentioning

confidence: 99%

“…5 shows an increasing offset of the voltage to lower wavelengths. Due to the polymers' negative thermo optical coefficient, TO = −1.1 • 10 −4 1/ • C [27], heating the Bragg section tunes the grating to a lower wavelength. A higher temperature decreases the refractive index change, lowers the gratings reflectivity and causes a higher mirror loss.…”

Section: Output Power Far Above Thresholdmentioning

confidence: 99%

See 1 more Smart Citation

Influence of Integrated Optical Feedback on Tunable Lasers

Happach

Felipe

Friedhoff

et al. 2020

IEEE J. Quantum Electron.

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Output Power Far Above Thresholdmentioning

confidence: 99%

Influence of Integrated Optical Feedback on Tunable Lasers

Happach

Felipe

Friedhoff

et al. 2020

IEEE J. Quantum Electron.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Due to the thermal dependency of the refractive index described by the thermo-optic coefficient (TOC) and the thermal expansion (TE) of the cavity length l cav , the optical length L cav changes with temperature variations ΔT through applying power at the phase heating section with dL/dT = ΔL = (TO + n•TE)•l•ΔT. The same occurs for the Bragg grating which can be tuned by applying electrical heating power to the heating section of the Bragg section [17] and thereby changing the Bragg wavelength. The lasing wavelength for a set of heating powers {P Br , P Ph } can be calculated by determining the length of the laser cavity, solving the condition for the round-trip phase for a set of modes k and equation 3.…”

Section: B Model For the Calculation Of The Lasing Wavelength Under mentioning

confidence: 96%

Effect of Optical Feedback on the Wavelength Tuning in DBR Lasers

Happach

Felipe

Friedhoff

et al. 2020

J. Lightwave Technol.

Self Cite

View full text Add to dashboard Cite

Optical feedback has an impact on the tunability of lasers. We created a model of a tunable distributed Bragg reflector (DBR) laser describing the effect of optical feedback from a constant reflector distance on the wavelength tuning. Theoretical and experimental results are in good agreement. A further discussion of the model sheds light on design rules to reduce the effect of optical feedback on the tuning behavior. We introduced a new parameter called mode loss difference (MLD) as a metric for the feedback tolerance of the tuning behavior. A large MLD indicates higher tolerance of the laser to cavity length variations.

show abstract

“…1. 25 Although the output frequency from DBR laser has been discussed in many monographs, there is a lack of quantitative models for lasers with different output characteristics or in various operating conditions. Referring to the qualitative analysis above, we choose the function set and terminal set as fþ; −; ×; ÷; exp; lng and fx 4 ; x 5 ; x 6 ; Bg, respectively, where x 4 ¼ I, x 5 ¼ T, x 6 ¼ λ, and λ is the wavelength measured with a wavelength meter.…”

Section: Modeling λ − ðI; T þmentioning

confidence: 99%

Genetic algorithm for accurate modeling of distributed Bragg reflector laser power and wavelength

et al. 2019

View full text Add to dashboard Cite

We propose a modeling methodology tailored to predicting the wavelength and power output from a distributed Bragg reflector laser for use in quantum measurements. The relationship between power, wavelength, current, and temperature is acquired with a genetic algorithm (GA). The function set and termination set for GA are determined from the physical mechanisms of laser current, temperature, and output performance. To verify the validity of the method, measured data are divided into a training group and a test group. The test results show that our models can accurately predict the value of power and wavelength at the given current and temperature, with the RMSE of 13.4 μW and 6.0 × 10 −5 nm, respectively. This method can help enhance the output performance of a laser. © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

show abstract

Temperature-Tolerant Wavelength-Setting and -Stabilization in a Polymer-Based Tunable DBR Laser

Cited by 13 publications

References 6 publications

Influence of Integrated Optical Feedback on Tunable Lasers

Influence of Integrated Optical Feedback on Tunable Lasers

Effect of Optical Feedback on the Wavelength Tuning in DBR Lasers

Genetic algorithm for accurate modeling of distributed Bragg reflector laser power and wavelength

Contact Info

Product

Resources

About