Laser diodes optical output power model

Borrás, R. Fabregat; Río, Joaquín Del; Oriach, Carles; Juliachs, Jordi

doi:10.1016/j.measurement.2018.10.007

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…In the past, this characteristic has been studied theoretically and experimentally in the broad field of laser diodes to determine the threshold for lasing. [113][114][115] In addition, it also plays an important role in showing properties of laser diodes with and without PR effects. In 1990, Gigase et al reported that the threshold pump power of an AlGaAs-GaAs ridge quantum well laser diode can decrease by PR.…”

Section: Output Power Of Laser Diodesmentioning

confidence: 99%

Photon Recycling in Semiconductor Thin Films and Devices

Cheng

O’Carroll

2021

Advanced Science

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Photon recycling (PR) plays an important role in the study of semiconductor materials and impacts the properties of their optoelectronic applications. However, PR has not been investigated comprehensively and it has not been demonstrated experimentally in many different kinds of semiconductor materials and devices. In this review paper, first, the authors introduce the background of PR and describe how this phenomenon was originally identified in semiconductors. Then, the theory and modelling of PR is reviewed and some of the important parameters that are used to quantify PR are highlighted. Next, a variety of the methods used to achieve and characterize PR in materials and devices are discussed. Examples of how the performance parameters of different types of optoelectronic devices are affected by PR are described. Finally, a summary of the roles of PR in semiconductor materials and devices and an outlook on how PR can be used to solve existing problems and challenges in the field of optoelectronics are provided. From this review, it is apparent that PR can have a positive impact on optoelectronic device performance, and that further in‐depth theoretical and experimental studies are needed to rigorously demonstrate the advantages and importance of PR.

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Section: Output Power Of Laser Diodesmentioning

confidence: 99%

Photon Recycling in Semiconductor Thin Films and Devices

Cheng

O’Carroll

2021

Advanced Science

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“…Authors in [6] reported a diamagnetic spring to act as a radiation pressure meter. Authors in [7] developed a model using Pspice simulation software and a comparison between the model and the actual diode was studied. The same problem of temperature dependence and stabilization in case of high power laser was encountered and studied in [8] in the case of high power diode-pumped Tm: YLF.…”

Section: Introductionmentioning

confidence: 99%

A Realization of Stabilizing the Output Light Power from a Laser Diode: A Practical Approach

Chughtai

2021

Eng. Technol. Appl. Sci. Res.

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Semiconductor Laser Diodes (LDs) are known for their sensitivity to variation in ambient temperature. With the rise in case temperature the threshold current of the LD increases, causing the output light power to deteriorate drastically. Therefore, it is necessary to stabilize the temperature of the diode. Various approaches could be adopted in this regard. In this paper, an active cooling approach using the temperature compensation technique has been followed and presented in the form of a full design of the circuit according to the various datasheet parameters of the LD and other components. As a result of temperature stabilization, a significant improvement in the output light power stabilization was observed and the results are presented.

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“…Unfortunately, due to the increased integration and packing density of optical modules, they consume more power and generate more heat while providing robust functionalities, thus requiring improved heat dissipation of the modules. [41,42] At the same time, the optical module must be warmed up to the specified operating temperature before it can start up in a low-temperature environment.…”

mentioning

confidence: 99%

Multifactor roadmap for designing low‐power‐consumed micro thermoelectric thermostats in a closed‐loop integrated 5G optical module

Yang,

Xing,

Wang

et al. 2024

Interdisciplinary Materials

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As the core components of fifth‐generation (5G) communication technology, optical modules should be consistently miniaturized in size while improving their level of integration. This inevitably leads to a dramatic spike in power consumption and a consequent increase in heat flow density when operating in a confined space. To ensure a successful start‐up and operation of 5G optical modules, active cooling and precise temperature control via the Peltier effect in confined space is essential yet challenging. In this work, p‐type Bi0.5Sb1.5Te3 and n‐type Bi2Te2.7Se0.3 bulk thermoelectric (TE) materials are used, and a micro thermoelectric thermostat (micro‐TET) (device size, 2 × 9.3 × 1.1 mm3; leg size, 0.4 × 0.4 × 0.5 mm3; number of legs, 44) is successfully integrated into a 5G optical module with Quad Small Form Pluggable 28 interface. As a result, the internal temperature of this kind of optical module is always maintained at 45.7°C and the optical power is up to 7.4 dBm. Furthermore, a multifactor design roadmap is created based on a 3D numerical model using the ANSYS finite element method, taking into account the number of legs (N), leg width (W), leg length (L), filling atmosphere, electric contact resistance (Rec), thermal contact resistance (Rtc), ambient temperature (Ta), and the heat generated by the laser source (QL). It facilitates the integrated fabrication of micro‐TET, and shows the way to enhance packaging and performance under different operating conditions. According to the roadmap, the micro‐TET (2 × 9.3 × 1 mm3, W = 0.3 mm, L = 0.4 mm, N = 68 legs) is fabricated and consumes only 0.89 W in cooling mode (QL = 0.7 W, Ta = 80°C) and 0.36 W in heating mode (Ta = 0°C) to maintain the laser temperature of 50°C. This research will hopefully be applied to other microprocessors for precise temperature control and integrated manufacturing.

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Laser diodes optical output power model

Cited by 4 publications

References 3 publications

Photon Recycling in Semiconductor Thin Films and Devices

Photon Recycling in Semiconductor Thin Films and Devices

A Realization of Stabilizing the Output Light Power from a Laser Diode: A Practical Approach

Multifactor roadmap for designing low‐power‐consumed micro thermoelectric thermostats in a closed‐loop integrated 5G optical module

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