1.5 inch High Speed Response, Multi-functional Integrating Sphere

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Overview

The IS1.5-VIS-FPD-800 multifunctional integrating sphere provides multiple measurement capabilities in a single integrating sphere device ideal for LIV testing and other divergent sources (e.g. VCSEL) measurements. The sphere includes a precision photodiode for calibrated average power measurement, a fast photodiode for pulse shape characterization on an oscilloscope and a built in SMA fiber adapter.

Fast photodiode for pulse shape characterization of divergent sources (e.g. VCSEL)
Internal diameter of 1.5 in. to minimize the pulse stretching effect
Pulse width as low as 3.5ns
Built in SMA fiber adapter for connection to a spectrometer
20 mm input port enabling long working distance
Accepts beams with divergence angles up to ±60°

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Products

		Compare	Model	Compatibility	sortOrder	rankScore	ranking	Drawings, CAD & Specs		Type	Sphere Size	Aperture Size	Spectral Range	Maximum Average Power	Availability	Featured Item	Price		Brand
		7Z02491 IS1.5-VIS-FPD-800 Multifunctional Integrating Sphere, 2 Detectors, 1.5 in. ID, 400 nW to 4 W, Ø20 mm, 400 to 1100 nm $3,613 Show	7Z02491 IS1.5-VIS-FPD-800 Multifunctional Integrating Sphere, 2 Detectors, 1.5 in. ID, 400 nW to 4 W, Ø20 mm, 400 to 1100 nm	UNIVERSAL	0.0	1.0	0.0		0.0	Divergent Beam	1.5 in.	Ø20 mm	400-1100 nm	4 W	Show		$3,613		Ophir

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Specifications

Product Name

IS1.5-VIS-FPD-800
Type

Divergent Beam
Sphere Size

1.5 inch ID
Aperture Size

Ø20 mm
Detector Type

Silicon and Fast Silicon
Spectral Range

400 to 1100nm
Minimum Power

400 nW

Maximum Average Power

4 W
Response Time

0.8 ns Rise, 2.8 ns Fall
Dimensions

67 x 52 x 61 mm (LxWxD)
CE Compliance

Yes
UKCA Compliance

Yes
China RoHS Compliance

Yes

Features

Multifunction Integrating Sphere IS1.5-VIS-FPD-800

In many applications such as VCSEL-based LIDAR and facial recognition systems, there is a need to measure multiple parameters of the laser beam at the same time, such as power, spectrum, and temporal pulse shape. Also, capturing and correctly measuring these widely-diverging and slowly-pulsing beams can be very challenging. The Ophir IS1.5-VIS-FPD-800 Multifunction Integrating Sphere sensor helps you meet these challenges. Get an overview in this video.

Frequently Asked Questions

The damage thresholds for your Integrating Sphere sensors are only given for the sphere surface – what about for the detector?
Answer
The damage threshold is given in the datasheet for the sphere inner surface rather than for the detector itself, because the sphere surface will reach its damage threshold long before the detector will. A beam entering the sphere will first hit the inner surface on the opposite side of the sphere, and if at that point the power density is too high it will damage the inner surface of the sphere. From that first "meeting" of the beam with the white diffuse reflective inner sphere surface, it will be diffusely reflected multiple times. Since there is no direct line of sight between the entrance port and the detector, any light reaching the detector has already been uniformly distributed around the inner surface of the sphere, but light in that "first impact" on the sphere wall has not yet been uniformly distributed. Therefore, the "damage threshold" for the device is the maximum power density of the beam as it first hits the inner wall.

I need to measure the power of a very asymmetrically diverging beam; the Fast axis divergence is ± 80 degrees, while the Slow axis divergence is ± 20 degrees. Will the IS6-D integrating sphere work? It’s specified Maximum Beam Divergence is ± 60 degrees.
Answer
The IS6-D type integrating spheres (such as IS6-D-VIS, IS6-D-UV, IS6-D-IR) will be good for this as long as you orient the 80 degree divergence in the vertical direction. The IS1.5-VIS-FPD-800 will also work, with the same constraint.

Frequently Asked Questions

The damage thresholds for your Integrating Sphere sensors are only given for the sphere surface – what about for the detector?
Answer
The damage threshold is given in the datasheet for the sphere inner surface rather than for the detector itself, because the sphere surface will reach its damage threshold long before the detector will. A beam entering the sphere will first hit the inner surface on the opposite side of the sphere, and if at that point the power density is too high it will damage the inner surface of the sphere. From that first "meeting" of the beam with the white diffuse reflective inner sphere surface, it will be diffusely reflected multiple times. Since there is no direct line of sight between the entrance port and the detector, any light reaching the detector has already been uniformly distributed around the inner surface of the sphere, but light in that "first impact" on the sphere wall has not yet been uniformly distributed. Therefore, the "damage threshold" for the device is the maximum power density of the beam as it first hits the inner wall.