Reducing thermal resistance of high-power semiconductor diode
Abstract Thermal resistance of diode lasers with different waveguide designs has been investigated. Coupled large optical cavity (CLOC) design allows reducing internal loss and
Temperature
Resistance
Passive
Optical
PON
Progress in Passive Silicon Photonic Devices: A Review
We survey the state of the art in fundamental building blocks, including strip, rib, and silicon nitride waveguides, with a focus on achieving ultra-low propagation loss.
Passive Optical Device
Abstract Passive devices and circuits are the bedrock and framework of integrated photonic chips. They route, integrate, and interfere with optical signals, forming the basis for all of the functionalities
Light Dependent Resistor: A Comprehensive Guide
A light-dependent resistor (LDR) is a passive component that changes its resistance based on light intensity. Also known as photoresistors, photocells, or photoconductors, LDRs are
Active Versus Passive Temperature Sensors | DigiKey
A designer''s guide to understanding active and passive temperature sensors including characteristics, advantages and disadvantages, and common applications.
Photodiode
For a low-speed optical receiver usually used in optical sensors, a high-load resistance of photodiode can be used which translates the photocurrent into a relatively high-voltage signal which is then
U.S. Patent for BICMOS process with low temperature coefficient
A polysilicon thin film low temperature coefficient resistor and a method for the resistor''s fabrication overcomes the coefficient of resistance problem of the prior art, while at the same time eliminating
Passive Optical Devices | Springer Nature Link
In the present chapter we discuss the following passive optical devices that are of great importance in integrated optic sensors : 1 Beam expanders 2 Optical couplers and beam adders 3 Y-Junctions
Advanced Passive Thermal Control Materials and Devices for
This review focuses on advanced passive thermal control materials and devices among spacecraft thermal control technologies, where thermophysical properties and their changes
From Molecular Design to Practical Applications: Strategies for
Polyimide (PI) films are well recognized for their outstanding chemical resistance, radiation resistance, thermal properties, and mechanical strength, rendering them highly valuable in
Progress in Passive Silicon Photonic Devices: A Review
This category includes modulators, which encode electrical data onto an optical carrier; photodetectors, which convert optical signals back into electrical ones; and light sources such as
Analysis and optimization of optical device packaging stress failure
This study analyzes the stress failure issues faced by optical device packaging in low-temperature environments and proposes corresponding optimization methods. Through the
Electronic packaging and passive devices for low temperature space
Abstract In addition to the challenges of cold operation for active devices, passive devices and packaging materials exhibit changes in electrical behavior as a function of temperature.
Identification of optical fibres in a passive optical network using
The authors demonstrate the use of highly temperature insensitive dense wavelength division multiplexing filters combined with optical reflectors and optical time domain reflectometry to
Low-temperature Metal Bonding for Optical Device Packaging
Low-temperature solid-liquid interdiffusion (SLID) bonding is an attractive alternative for the packaging of optical devices. It reduces global residual stress build up caused by differences in coefficient of
Optical Fiber Sensors for High-Temperature Monitoring: A Review
High-temperature measurements above 1000 °C are critical in harsh environments such as aerospace, metallurgy, fossil fuel, and power production. Fiber-optic high-temperature sensors are
7.0 Thermal Control
Passive thermal control maintains component temperatures without using electrically powered equipment. Passive systems are typically associated with low cost, volume, weight, and
Chapter 10 Passive Devices
Fibre-optic networks have experienced tremendous growth during the last few years, starting with backbone or long haul networks over Metro nets and having reached the residential area more
Low-temperature thermoelectric materials and applications
Abstract Low-temperature thermoelectric (TE) materials and devices are gaining traction in the field of heat management for optical communication chips and integrated circuits, owing to their
Thermo-optic tuning of silicon nitride microring resonators with low
In order to extract the spectral response at different powers, the following methodology was used: Firstly, a 10 dBm pump-laser sweep was done before every single-wavelength laser
Progress in passive daytime radiative cooling: A review from optical
Abstract By exploiting the 3 K coldness of outer space as heat sink of terrestrial thermal radiation, passive daytime radiative cooling (PDRC) can achieve sub-ambient temperatures without
Performance of Various Types of Resistors at Low Temperatures
Several types of low to medium power resistors were selected for evaluation in terms of resistance stability as a function of temperature. These passive devices included metal film, carbon and ceramic
Experimental Study on Thermal Contact Resistance Improvement for
Abstract. This paper presents an experimental analysis for minimizing the thermal contact resistance (R) between an optical fiber and copper heat sink by using the low-melting
Annual Review of Materials Research Limitations and Advances in Optical
We review several techniques below, focusing on those that currently reach temperatures in the upper end of the high-temperature regime and those that can reach ultrahigh temperatures.
Passive Temperature Stabilization of Silicon Photonic Devices Using
In this work we explore the negative thermo-optic properties of liquid crystal claddings for passive temperature stabilization of silicon photonic integrated circuits.