Development of an ultra-stable, low-cost diode laser system

2011 ◽  
Author(s):  
Eryn C. Cook ◽  
Paul J. Martin ◽  
Daniel A. Steck
Keyword(s):  
Diode Laser ◽  
Low Cost ◽  
Laser System

Qualification and Reliability Testing of a Microchip Laser System for Space Applications

2003 ◽  
Author(s):  
M. W. Wright ◽  
D. Franzen ◽  
H. Hemmati ◽  
M. Sandor
Keyword(s):  
Diode Laser ◽  
Thermal Loading ◽  
Low Cost ◽  
Laser System ◽  
Optical Power ◽  
Telecommunications Industry ◽  
Microchip Laser ◽  
Temperature Cycling ◽  
Space Applications ◽  
Environmental Testing

A compact microchip laser pumped by a single fiber coupled diode laser was developed for a scanning laser radar instrument called Laser Mapper (LAMP) to be used as a guidance and control sensor in future JPL/NASA missions [1]. The system involves commercial-off-the-shelf components that were packaged and qualified for space applications. In particular, the system has to meet a 5000 hour minimum life requirement on a LEO platform. This paper discusses the process being used and the results of the selection and qualification of a low cost prepackaged diode laser with a custom packaged microchip laser crystal. The environmental testing would be applicable to a variety of commercial photonic systems. The topics to be discussed include: • The selection of the diode pump laser; • Upscreening of commercial parts; • Qualification sampling tests including temperature cycling, vibration, outgassing; • Physical construction analysis. The testing requirements and screening flow to ensure the lifetime reliability will be presented. This was determined based on input from Telcordia standards that apply to optoelectronic systems used in the telecommunications industry but upgraded to account for the unique aspects of the devices, such as the high optical power. The key elements in packaging high power optoelectronic devices for harsh environments include managing the thermal loading through the expected spacecraft temperature extremes and addressing the die mounting, optical fiber coupling and jacket assembly. Each of these aspects will be discussed in light of the testing results.

scholarly journals Combinefluent: An Open Source, Low-Cost Laser System for Single-Molecule Microscopy

2021 ◽  
Vol 120 (3) ◽  
pp. 184a
Author(s):  
Dylan George ◽  
Ashley Cadby ◽  
Timothy D. Craggs
Keyword(s):  
Open Source ◽  
Single Molecule ◽  
Low Cost ◽  
Laser System ◽  
Single Molecule Microscopy

scholarly journals Gold Nanorods for Light-Based Lung Cancer Theranostics

2018 ◽  
Vol 19 (11) ◽  
pp. 3318 ◽  
Author(s):  
Oscar Knights ◽  
James McLaughlan
Keyword(s):  
Gold Nanorods ◽  
Photothermal Therapy ◽  
Continuous Wave ◽  
Low Cost ◽  
Laser System ◽  
Controlled Synthesis ◽  
Surface Plasmon Resonances ◽  
Plasmon Resonances ◽  
Theranostic Applications ◽  
Cancer Theranostics

Gold nanorods (AuNRs) have the potential to be used in photoacoustic (PA) imaging and plasmonic photothermal therapy (PPTT) due to their unique optical properties, biocompatibility, controlled synthesis, and tuneable surface plasmon resonances (SPRs). Conventionally, continuous-wave (CW) lasers are used in PPTT partly due to their small size and low cost. However, if pulsed-wave (PW) lasers could be used to destroy tissue then combined theranostic applications, such as PA-guided PPTT, would be possible using the same laser system and AuNRs. In this study, we present the effects of AuNR size on PA response, PW-PPTT efficacy, and PA imaging in a tissue-mimicking phantom, as a necessary step in the development of AuNRs towards clinical use. At equivalent NP/mL, the PA signal intensity scaled with AuNR size, indicating that overall mass has an effect on PA response, and reinforcing the importance of efficient tumour targeting. Under PW illumination, all AuNRs showed toxicity at a laser fluence below the maximum permissible exposure to skin, with a maximum of 80% cell-death exhibited by the smallest AuNRs, strengthening the feasibility of PW-PPTT. The theranostic potential of PW lasers combined with AuNRs has been demonstrated for application in the lung.

Stabilized diode-laser system with grating feedback anf frequency-offset locking

1993 ◽  
Vol 102 (3-4) ◽  
pp. 251-256 ◽  
Author(s):  
Jeffery J. Maki ◽  
N.S. Campbell ◽  
C.M. Grande ◽  
R.P. Knorpp ◽  
D.H. McIntyre
Keyword(s):  
Diode Laser ◽  
Laser System ◽  
Frequency Offset

Noble metal nanoparticles on quartz supports as SERS substrates excited by a diode laser system for SERDS

2012 ◽  
Author(s):  
Robert Ossig ◽  
Yong-Hyok Kwon ◽  
Heinz-Detlef Kronfeldt ◽  
Frank Träger ◽  
Frank Hubenthal
Keyword(s):  
Metal Nanoparticles ◽  
Diode Laser ◽  
Noble Metal ◽  
Laser System ◽  
Noble Metal Nanoparticles ◽  
Sers Substrates

scholarly journals Silicon Photonic Micro-Transceivers for Beyond 5G Environments

2021 ◽  
Vol 11 (22) ◽  
pp. 10955
Author(s):  
Kazuhiko Kurata ◽  
Luca Giorgi ◽  
Fabio Cavaliere ◽  
Liam O’Faolain ◽  
Sebastian A. Schulz ◽  
...  
Keyword(s):  
Quantum Dot ◽  
High Temperatures ◽  
Low Cost ◽  
Laser System ◽  
Data Rate ◽  
Ambient Temperatures ◽  
Quantum Dot Laser ◽  
Silicon Photonic ◽  
Order Of Magnitude ◽  
And Performance

Here, we report on the design and performance of a silicon photonic micro-transceiver required to operate in 5G and 6G environments at high ambient temperatures above 105 °C. The four-channel “IOCore” micro-transceiver incorporates a 1310 nm quantum dot laser system and operates at a data rate of 25 Gbps and higher. The 5 × 5 mm micro-transceiver chip benefits from a multimode coupling interface for low-cost assembly and robust connectivity at high temperatures as well as an optical redundancy scheme, which increases reliability by over an order of magnitude.

scholarly journals In Vitro Photothermal Destruction of Cancer Cells Using Gold Nanorods and Pulsed-Train Near-Infrared Laser

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Jui-Teng Lin ◽  
Yueh-Sheng Chiang ◽  
Guang-Hong Lin ◽  
Hsinyu Lee ◽  
Hsia-Wei Liu
Keyword(s):  
Cancer Cells ◽  
Diode Laser ◽  
Near Infrared ◽  
Irradiation Time ◽  
Laser System ◽  
Gold Nanorod ◽  
Near Ir ◽  
Laser Heated ◽  
Train System

We present a novel pulsed-train near-IR diode laser system with real-time temperature monitoring of the laser-heated cancer cell mixed in gold nanorod solution. Near-IR diode laser at 808 nm matching the gold nanorod absorption peak (with an aspect ratio about 4.0) was used in this study. Both surface and volume temperatures were measured and kept above 43°C, the temperature for cancer cells destruction. The irradiation time needed in our pulsed-train system with higher laser fluence for killing the cancel cells is about 1–3 minutes, much shorter than conventional methods (5–10 minutes). Cell viabilities in gold nanorod mixed and controlled solutions are studied by green fluorescence.

A diode laser system for spectroscopy of the ultranarrow transition in ytterbium atoms

2008 ◽  
Vol 91 (1) ◽  
pp. 57-60 ◽  
Author(s):  
A. Yamaguchi ◽  
S. Uetake ◽  
Y. Takahashi
Keyword(s):  
Diode Laser ◽  
Laser System
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