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Optics & Photonics News

COVER STORY

High-Power Fiber Lasers

Jeff Hecht

Fiber lasers have laid down a strong track record for high-power, high-quality beams for industry and even the military. The challenge is pushing them beyond their current limits.

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IMAGE OF THE WEEK

Dining with Telescopes
Dining with Telescopes

LED ceiling lights, refracted through two water glasses on a dinner table that act as positive power lenses. The coupling of the focal distances creates a a domestic “telescope” that can be used to demonstrate simple geometrical-optics concepts. (Image was taken with a Samsung S7 phone.)


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Latest News

Instrument Boosts Analysis of Small, Extremely Dark Materials

26 September 2018
Researchers have developed a new instrument that can analyze light reflected from very small or extremely dark materials such as some meteorite sam...

Instrument Boosts Analysis of Small, Extremely Dark Materials

Hamamatsu to Distribute Energetiq’s LDLS™ Products

25 September 2018

Optics & Photonics Science and Applications Intersect at 2018 FIO + LS

21 September 2018
The 2018 Frontiers in Optics + Laser Science (FIO + LS) conference and exhibition concluded 20 September and featured the latest in optics and phot...

Fiber Optic Sensor Measures Tiny Magnetic Fields

19 September 2018
Researchers have developed a light-based technique for measuring very weak magnetic fields, such as those produced when neurons fire in the brain.

Fiber Optic Sensor Measures Tiny Magnetic Fields

Deadline Extended to Oct. 1 to Apply to Luminate Accelerator; Receive Startup Funding for Optics, Photonics and Imaging Applications

18 September 2018
The application deadline to compete for a spot in Cohort II of Luminate NY—the world’s only business accelerator for startups with optics, photonic...

OSA Publishing

Recently Published

Room temperature continuous-wave nanolaser diode utilized by ultrahigh-Q few-cell photonic crystal nanocavities

Optics Express, Vol. 26 Issue 20, pp.26598-26617 (2018)
Few-cell point-defect photonic crystal (PhC) nanocavities (such as LX and H1 type cavities), have several unique characteristics includi...

Room temperature continuous-wave nanolaser diode utilized by ultrahigh-Q few-cell photonic crystal nanocavities

High power picosecond parametric mid-IR source tunable between 1.7 and 2.6  μm

Applied Optics, Vol. 57 Issue 28, pp.8412-8417 (2018)
A high-average-power wavelength-tunable picosecond mid-IR source based on parametric downconversion has been developed. The conversion system consi...

High power picosecond parametric mid-IR source tunable between 1.7 and 2.6  μm

Near-infrared probe-based confocal microendoscope for deep-tissue imaging

Biomedical Optics Express, Vol. 9 Issue 10, pp.5011-5025 (2018)
In this work, a near-infrared probe-based confocal microendoscope (pCM) with a 785 nm laser source, a long working distance, and a probe with diame...

Near-infrared probe-based confocal microendoscope for deep-tissue imaging

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