title: Ð£Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ ÑÐµÐ¿Ð»Ð¾Ð²ÑÐ¼Ð¸ Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ°Ð¼Ð¸ ÑÐ¾ÑÑÐµÐ²ÑÑ Ð¿Ð¾Ð»ÑÐ¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¸ÐºÐ¾Ð²ÑÑ Ð»Ð°Ð·ÐµÑÐ¾Ð² Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÑÐ¾ÑÑÐ°Ð²Ð½ÑÑ Ð²Ð¾Ð»Ð½Ð¾Ð²Ð¾Ð´Ð¾Ð²
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Thermal characteristics of semiconductor edge-emitting lasers based on coupled waveguides
Creators: name: ÐÐ¿Ð°Ð½ÑÐ¸Ð½Ð¾Ð²Ð°, ÐÐ½Ð¶ÐµÐ»Ð¸ÐºÐ°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: ÐÐ¾Ð»Ð½Ð¾Ð²Ð¾Ð´Ñ
ÐÐµÐ½ÐµÑÐ°ÑÐ¾ÑÑ ÐºÐ²Ð°Ð½ÑÐ¾Ð²ÑÐµ
Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ°Ñ Ð¼Ð¾Ð´Ð°
ÑÐµÑÐ¼Ð¾ÑÐ¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ðµ
high-power lasers
thermal resistance

description: Ð Ð°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾Ð¼Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð¾Ð¹ÑÑÐ² Ð¸ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ Ð¼Ð¾ÑÐ½ÑÑ Ð¿Ð¾Ð»ÑÐ¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¸ÐºÐ¾Ð²ÑÑ Ð»Ð°Ð·ÐµÑÐ¾Ð² Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÑÐ¾ÑÑÐ°Ð²Ð½ÑÑ, Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ¸ ÑÐ²ÑÐ·Ð°Ð½Ð½ÑÑ Ð²ÐµÑÑÐ¸ÐºÐ°Ð»ÑÐ½ÑÑ Ð²Ð¾Ð»Ð½Ð¾Ð²Ð¾Ð´Ð¾Ð² (coupled large optical cavity â CLOC). Ð ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÐ¼Ð¾Ð¹ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ ÑÐ°ÑÑÐ¸ÑÐ¸ÑÑ Ð²Ð¾Ð»Ð½Ð¾Ð²Ð¾Ð´ Ð¿ÑÐ¸ ÑÐ¾ÑÑÐ°Ð½ÐµÐ½Ð¸ÐµÐ¼ ÑÐ°Ð±Ð¾ÑÑ Ð»Ð°Ð·ÐµÑÐ° Ð½Ð° ÑÑÐ½Ð´Ð°Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´Ðµ, Ð¿ÑÐ¸ ÑÑÐ¾Ð¼ Ð°ÐºÑÐ¸Ð²Ð½ÑÑ Ð¾Ð±Ð»Ð°ÑÑÑ Ð¼Ð¾Ð¶Ð½Ð¾ ÑÐ¼ÐµÑÐ°ÑÑ Ð² ÑÑÐ¾ÑÐ¾Ð½Ñ p-Ð¾Ð±ÐºÐ»Ð°Ð´ÐºÐ¸, ÑÐ½Ð¸Ð¶Ð°Ñ Ð¾Ð´Ð½Ð¾Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð¾ Ð²Ð½ÑÑÑÐµÐ½Ð½Ð¸Ðµ Ð¿Ð¾ÑÐµÑÐ¸ Ð¸ ÑÐµÐ¿Ð»Ð¾ÑÐ¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ðµ Ð¿ÑÐ¸Ð±Ð¾ÑÐ¾Ð². ÐÑÐ½Ð¾Ð²Ð½Ð¾Ð¹ ÑÐµÐ»ÑÑ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð¾ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÐ¿Ð»Ð¾Ð²Ð¾Ð³Ð¾ ÑÐ¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ñ Ð»Ð°Ð·ÐµÑÐ¾Ð² ÑÐ¾ ÑÑÐ°Ð½Ð´Ð°ÑÑÐ½Ð¾Ð¹ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸ÐµÐ¹ Ð²Ð¾Ð»Ð½Ð¾Ð²Ð¾Ð´Ð° Ð¸ CLOC Ð»Ð°Ð·ÐµÑÐ¾Ð². ÐÐ»Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐµÐ¿Ð»Ð¾ÑÐ¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½ Ð¼ÐµÑÐ¾Ð´ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð¿ÐµÑÐµÐ³ÑÐµÐ²Ð° Ð°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð¾Ð±Ð»Ð°ÑÑÐ¸ Ð¿Ð¾ ÑÐ¿ÐµÐºÑÑÐ°Ð¼ ÑÐ¿Ð¾Ð½ÑÐ°Ð½Ð½Ð¾Ð³Ð¾ Ð¸Ð·Ð»ÑÑÐµÐ½Ð¸Ñ. ÐÐ¾ÐºÐ°Ð·Ð°Ð½Ð¾, ÑÑÐ¾ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð½ÑÐ¹ Ð¼ÐµÑÐ¾Ð´ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÐµÑ Ð¿Ð¾Ð²ÑÑÐ¸ÑÑ ÑÐ¾ÑÐ½Ð¾ÑÑÑ Ð¸Ð·Ð¼ÐµÑÐµÐ½Ð¸Ð¹ Ð´Ð¾ 0.1-0.2 Ð/ÐÑ. ÐÐ¾Ð»ÑÑÐµÐ½Ð½Ð°Ñ ÑÐ¾ÑÐ½Ð¾ÑÑÑ Ð¾ÐºÐ°Ð·Ð°Ð»Ð°ÑÑ Ð´Ð¾ÑÑÐ°ÑÐ¾ÑÐ½Ð¾Ð¹ Ð´Ð»Ñ Ð²ÑÑÐ²Ð»ÐµÐ½Ð¸Ñ ÑÐ°Ð·Ð½Ð¸ÑÑ ÑÐµÐ¿Ð»Ð¾ÑÐ¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ð¹ Ð»Ð°Ð·ÐµÑÐ¾Ð² ÑÐ¾ ÑÑÐ°Ð½Ð´Ð°ÑÑÐ½Ð¾Ð¹ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸ÐµÐ¹ Ð²Ð¾Ð»Ð½Ð¾Ð²Ð¾Ð´Ð° Ñ CLOC Ð»Ð°Ð·ÐµÑÐ°Ð¼Ð¸. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÑ ÑÐ°Ð±Ð¾ÑÑ Ð¿Ð¾ÐºÐ°Ð·ÑÐ²Ð°ÑÑ, ÑÑÐ¾ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð²Ð¾Ð»Ð½Ð¾Ð²Ð¾Ð´Ð¾Ð² CLOC Ð¼Ð¾Ð¶Ð½Ð¾ Ð¾Ð´Ð½Ð¾Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð¾ ÑÐ»ÑÑÑÐ¸ÑÑ Ð²Ð½ÑÑÑÐµÐ½Ð½Ð¸Ðµ Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¿Ð¾ÑÐµÑÐ¸ Ð¸ ÑÐµÑÐ¼Ð¸ÑÐµÑÐºÐ¾Ðµ ÑÐ¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ðµ, Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ, ÐºÑÐ¸ÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð´Ð»Ñ Ð¼Ð¾ÑÐ½ÑÑ Ð»Ð°Ð·ÐµÑÐ¾Ð², Ð° ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ ÑÐ¾ ÑÐ²ÑÐ·Ð°Ð½Ð½ÑÐ¼Ð¸ Ð²Ð¾Ð»Ð½Ð¾Ð²Ð¾Ð´Ð°Ð¼Ð¸ Ð¿ÐµÑÑÐ¿ÐµÐºÑÐ¸Ð²Ð½Ñ Ð´Ð»Ñ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ñ Ð½Ð¾Ð²ÑÑ Ð¿Ð¾ÐºÐ¾Ð»ÐµÐ½Ð¸Ð¹ Ð¼Ð¾ÑÐ½ÑÑ Ð¿Ð¾Ð»ÑÐ¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¸ÐºÐ¾Ð²ÑÑ Ð»Ð°Ð·ÐµÑÐ¾Ð².
description: The work is devoted to the experimental study of the properties and optimization of the design of high-power semiconductor lasers based on coupled large optical cavity (CLOC) waveguides. In the considered design it is possible to expand the waveguide while maintaining the laser operation in the fundamental mode, and also the active region can be shifted towards the p-cladding, simultaneously reducing internal losses and the thermal resistance of the devices. The main goal of the work was to study the thermal resistance of lasers with the standard waveguide design and CLOC lasers. To study the thermal resistance, an improved method of determining the overheating of the active region by spontaneous emission spectra was proposed. It was shown that the proposed method allows increasing the accuracy of measurements up to 0.1-0.2 K/W. The obtained accuracy proved to be sufficient for detecting the difference in thermal resistivities of lasers with standard waveguide design with CLOC lasers. The results of the work show that using CLOC waveguides one can simultaneously improve the internal optical losses and thermal resistance, parameters critical for high-power lasers. Designs with coupled waveguides are promising for creating new generations of high-power semiconductor lasers.