Frequently Asked Questions

Optical Delay Line

What is a Delay Line?

A delay line is a device that produces a specific delay in a transmission signal. They are used in industries such as: telecommunications, defense and radar.

What is an Optical Delay Line?

Optical delay Lines are an electric-optic device that performs fixed time delays. The time delay can vary between few nanoseconds up to several hundred microseconds. By varying the distance that light travels, the delay time can be controlled.

What is a Fiber Optic Delay Line?

Fiber-optic delay lines are delay lines that produce transmission delays in fiber optic systems. They are used to offset delay differences.

Fiber Optic Delay Lines are also known as:  RF Fiber Optic Delay Lines, Optical Fiber Delay Lines, Microwave Fiber Optic Delay Lines.

What is a Manual Variable Optical Delay Line?

A manual variable optical delay line is a delay line with a manual optical path variation.

What is a Linear Rotary Optical Delay Line?

A linear rotary optical delay line is a delay line that uses rotating reflective surfaces to produce a linear delay length.

Variable Optical Delay Line?

A variable optical delay line is a delay line with an optical path variation. See also Manual Variable Optical Delay Line.

What is a Tuneable Optical Delay Line?

A tuneable optical delay line is a delay line used for data buffering, signal processing and phased array antennae.

Key to Time-Resolved Measurements with Optical Delay Lines?

The key to time-resolved measurements are the means of obtaining accurate and reliable time delay in an optical delay line.

What is a Rapid Scanning All Reflective Optical Delay Line?

Rapid scanning all reflective optical delay lines are delay lines used in real-time optical coherence tomography, specifically for when an ultra-broadband light source is used.

What is a Low Loss Optical Delay Line?

Low loss optical delay lines are delay lines that give little to no signal loss in the transference of the signal.

What is an Analog Delay Line?

An analog delay line is a type of delay line made up of a network of electrical components connected in series. In a an analog delay line each individual element creates time delay or phase change between its input signal and its output signal.

What is an Optical Phase Modulator Delay Line?

An optical phase modulator is a device that uses a signal-controlled element exhibiting the electro-optic effect to modulate a beam of light.

What is a Digital Delay Line?

A digital delay line is a type of delay line which causes a signal delay using a number of samples. Digital delay lines are used for sound synthesis in musical instruments and digital audio affects.

What is a Programmable Delay Line?

A programmable delay line is a delay line whose specific delay can be programmed and changed.

What is a Hybrid Optical Delay Line?

A hybrid optical delay line is a delay line that combines an analog digital delay line with a fiber optic delay line.

What is an Acousto-Optical Delay Line?

An acousto-optical delay lines provide smooth-controlled delay of wideband analog signals.

What is a Microseconds Group Delay Line?

A group delay is the slope of the phase response as a function of frequency in the delay line, measured in microseconds.

What is a Tapped Delay Line (TDL)?

A tapped delay line (TDL) is a type of delay line with one or more taps. A tap extracts a signal from within the delay line, scales it, and combines it with other taps for form an output signal. A tapped TDL is used in audio signal processing.

What is a Dispersive Delay Line?

Dispersive delay lines are delay lines that use a linear group delay as opposed to a frequency delay.

What is an Electromagnetic Delay Line?

An electromagnetic delay line is a types of line used to cause a signal delay in electromagnetic waves.

What is an Ultrasonic Delay Line?

An ultrasonic delay line is a type of delay line composed of a thin layer of piezoelectric material. Ultrasonic delay lines are used to produce short, precise delays in electrical signals.