Application Notes

Introduction to Laser Frequency Stabilization

 Application Note
The steps outlined in this application note can be used to stabilize a TLB-7000, TLB-6900, or TLB-6300 series tunable diode laser to a reference cavity using the Pound-Drever-Hall stabilization technique.

The Michelson Interferometer Experimental Setup

 Application Note
Albert A. Michelson won the 1907 Nobel Prize in Physics “for his optical precision instruments and the spectroscopic and metrological investigations carried out with their aid.” One of his instruments was the Michelson interferometer. The Michelson i

Practical Uses and Applications of Electro-Optic Modulators

 Application Note
Electro-optic amplitude and phase modulators allow you to control the amplitude, phase, and polarization state of an optical beam electrically. For instance, in communications systems, these modulators impress information onto an optical frequency ca

FM Spectroscopy With Tunable Diode Lasers

 Application Note
Frequency-modulation spectroscopy is a powerful tool that can achieve high sensitivities with a relatively simple experimental setup. Tunable diode lasers, in particular, can make the setup even simpler because they provide a narrow, tunable output t

Phase-Shifting Interferometry for Determining Optical Surface Quality

 Application Note
Determining the surface quality of a critical component—the deviation from the intended shape whether flat, spherical, etc.—is crucial to high-precision manufacturing. Traditional methods consist of an interferometer, for example a Twyman-Green interf

A Survey of Methods Using Balanced Photodetection

 Application Note
New Focus balanced photoreceivers are ideal for optical detection applications that require sensitive measurements. This application note focuses on several techniques, divided into three categories: small signal detection in time domain, small signa

Photo-Biological Testing with UV Solar Simulators

 Application Note
Photo-biology is the study of the effect of UVA and/or UVB, visible, and IR radiation upon living systems. The first law of photochemistry (Grotthaus-Draper Law) states that light must be absorbed for a photochemical event to occur.

ULTRAlign™ Precision Fiber Optic Positioning System

 Application Note
Designed specifically for single-mode fiber positioning, the 561/562 Series meets the most difficult challenges in component engineering. The core of a single-mode fiber can be as small as a few microns in diameter, and successful long-term coupling

Matching Isolators to OEM Industrial Applications

 Application Note
Micro-vibration isolation first became necessary in laser research laboratories. Newport Research Corporation, beginning in 1969, satisfied this need with a series of isolation legs to support optical tables in laboratory applications. These isolator

Insights into High-Speed Detectors and High-Frequency Techniques

 Application Note
With the advancement of high-transmission-rate systems and short-pulse lasers, many applications now require high time-resolution or equivalently, high frequency-bandwidth optical detection. For example, a high-speed photodetector can measure the fre
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