Thermal resistance reduction in high power superluminescent diodes by using active multi-mode interferometer

Zang, Zhigang; Mukai, Kazuo; Navaretti, Paolo; Duelk, M.; Vélez, Christian; Hamamoto, Kiichi

doi:10.1063/1.3678188

Cited by 146 publications

(43 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Reduction of optical reflection is important for many applications including photovoltaic devices [1][2][3][4], displays, camera lens, superluminescent light emitting diodes [5,6], and ophthalmic lenses [7]. Reflection from any given interface at normal incidence is related to the ratio of the refractive indices of the materials consisting the interface and is given by R (%) ¼((n 0 Àn m ) 2 /(n 0 þn m ) 2 ) Â 100 where R is % reflectance, n 0 is the refractive index of the first layer (usually air), and n m is the refractive index of the second layer (window).…”

Section: Introductionmentioning

confidence: 99%

Effective graded refractive-index anti-reflection coating for high refractive-index polymer ophthalmic lenses

Kim

2015

Materials Letters

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Effective graded refractive-index anti-reflection coating for high refractive-index polymer ophthalmic lenses

Kim

2015

Materials Letters

View full text Add to dashboard Cite

“…The advent of low-coherence light sources, such as superluminescent diode (SLD) 4,[16][17][18] and amplified spontaneous emission (ASE) light sources, 4 permit the elimination of Rayleigh backscattering and Kerr effect errors. An ASE light source is used considering the stable wavelength with temperature sensitivities nearly two orders of magnitude smaller than a SLD.…”

Section: Measurement Setupmentioning

confidence: 99%

New measurement method for eigen frequency of a fiber optic gyroscope

Yang

2013

Opt. Eng

View full text Add to dashboard Cite

Abstract. Eigen frequency is a very important parameter in a fiber optic gyroscope (FOG). To establish an accurate measurement of eigen frequency, we propose a new measurement method based on employing the square-wave, over-bias modulation with double eigen frequency. We investigate the proposed method both experimentally and theoretically. Experimental results show the measurement accuracy of eigen frequency is better than AE5 Hz, which satisfies the eigen frequency measurement of most FOGs. A theoretical model of the method gives a good explanation of the experimental results. The method is simple, low-cost, and easy to implement. In addition, it can greatly improve the accuracy of the eigen frequency measurement without needing additional hardware for existing gyro systems. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 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

“…For instance, by using the Goos-Hanchen shift to design high-power superluminescent diodes of up to 115 mW, a low thermal resistance of 4.83 K∕W in active multimode interferometer (active-MMI) superluminescent light-emitting diodes (SLEDs) and a high coupling efficiency of 66% of the fiber-coupled power of active-MMI SLEDs into single-mode fiber have been obtained. [6][7][8] However, I do not think that the problem of the evanescent light wave has been solved satisfactorily. According to the electromagnetic wave theory, an evanescent wave of light should decay exponentially along the z direction and move forward infinitely in the x direction.…”

Section: Introductionmentioning

confidence: 99%

Evanescent wave of a single photon

Li¹

2013

Opt. Eng

View full text Add to dashboard Cite

Abstract. A photon model is proposed, and the parameter equations of the photon are obtained. This model can explain the polarization, total reflection, evanescent wave, and Goos-Hanchen shift of a single photon. The evanescent waves of photons with different frequencies are refractively dispersed. The Goos-Hanchen shift is dependent on the difference between the two refractive indices of media, the incident angle, and the frequency of the photon. According to this model, an evanescent wave of light does not decay exponentially along the z direction and does not propagate along the x direction infinitely. The laws of refraction and reflection for a single photon can be derived. The refractive dispersion of light can be explained. According to this model, every photon is polarized. Polarization is the intrinsic nature of the photon. The motion of a single photon is either clockwise or counterclockwise. The so-called unpolarized light refers to light that consists of an equal number of photons with clockwise motion and counterclockwise motion. The trajectories of two photons with the same frequency but opposite spiral directions are mirror-image isomers. They cannot be superimposed upon each other. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 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

Thermal resistance reduction in high power superluminescent diodes by using active multi-mode interferometer

Cited by 146 publications

References 17 publications

Effective graded refractive-index anti-reflection coating for high refractive-index polymer ophthalmic lenses

Effective graded refractive-index anti-reflection coating for high refractive-index polymer ophthalmic lenses

New measurement method for eigen frequency of a fiber optic gyroscope

Evanescent wave of a single photon

Contact Info

Product

Resources

About