Specifications

Features

Collimated Beam Input

Depending on the beam divergence characteristics of the light source, Newport offers two different types of integrating sphere detectors – Divergent or Collimating. The 819C series are used for a collimated input beam, such as a laser beam. When the collimated beam is measured, the baffle needs to be placed between the first reflection off of the internal wall of the sphere and the detector. The baffle prevents direct radiation from the hot spot from hitting the detector, which allows the spatially integrated beam power measurement.

SMA Fiber Adapter on the North Pole

All the spheres come with an SMA fiber adapter on the North pole as a standard feature, allowing a small amount of light pickoff for wavelength measurement or any further analysis without affecting the overall system calibration. All sphere detectors are calibrated with the adapter already installed.

It is important to determine whether enough signal can be sent to the spectrometer or a monochromator.  A rough estimate on how much light will couple to the optical fiber can be obtained by taking the ratio between the core area or the effective mode area of the fiber and the surface area of the sphere, which can be very small.  We recommend using a spectrometer that accepts at least 400 to 600 um diameter fiber input.    

Post-Mountable for Accurate Measurements

To ensure accurate measurements, it is recommended to mount these integrating spheres securely. One way to do so is by mounting them on an optical post.

Advanced –CAL2 Models

Advanced models that end with a “-CAL2” suffix feature a detector that has an integrated thermocouple and OD1 attenuator. When these models are connected to power meter models 1830-R, 1918-R, 1936-R or 2936-R, they will automatically recognize both the attenuator “on/off” position as well as the detector head temperature. The advanced models are designed for added convenience and ease of use.

Integrating Sphere Accessories

Newport offers accessories that are compatible with our integrating spheres to build a complete integrating sphere system. Various adapters are available to change port frame diameter, reduce an input port's clear aperture, measure fiber optic power, connect lens tubes and mount sensors. Port plugs to block an unused sphere port are also available.

Factors that Affect Maximum Measurable Power

The maximum measurable power of photodiode sensors is dependent on several factors such as the wavelength of incoming light, photodiode current output saturation, temperature, use of an attenuator and a power meter's maximum current input value. Newport provides maximum power specifications based on the power meter models, with and without an attenuator, and wavelength-dependent maximum power level. With these factors affecting measurable power in mind, choosing the proper detector for your application is critical.

Newport offers a comprehensive range of optical power meters from low cost, hand-held meters to the most advanced dual-channel benchtop meter available in the market. Presented here is a list of meters compatible with the 918D Series sensors. For more detailed information about our power meters, please see our Optical Power Meter Guide.

2938-R_front_angle
1938-R/2938-R		 2936-R-grey_sensor
1936-R/2936-R		 1919-R_angle
1919-R		 843-R_side
843-R/843-R-USB		 845-PE-RS
845-PE-RS		 844-PE-USB
844-PE-USB
User Interface Touchscreen Advanced Advanced Simple User Commands, PMManager PMManager only
Temperature Sensing  Enabled for -CAL2 and CAL2v2 models Enabled for -CAL2 and CAL2v2 models Enabled for -CAL2 and CAL2v2 models Enabled for -CAL2 and CAL2v2 models Enabled for -CAL2 and CAL2v2 models
Automatic Attenuator Sensing Enabled for -CAL2 and CAL2v2 models Enabled for -CAL2 and CAL2v2 models Enabled for -CAL2 and CAL2v2 models   Enabled for -CAL2 and CAL2v2 models Enabled for -CAL2 and CAL2v2 models
Measurement Modes Power,
Low Freq. Power
Peak-to-Peak Power,
RMS Power,
Exposure,
Exposure
Fast Power
Current
Voltage		 Power,
Peak-to-Peak Power,
RMS Power,
Current		 Power,
Low Freq. Power
Exposure		 Power Power
Low Freq. Power		 Power
Low Freq. Power
Analog Bandwidth Up to 200 kHz Up to 400 kHz 15 Hz  15 Hz 15 Hz 15 Hz 
Data Storage 2 GB internal,
External USB memory size,
Via PMManager		 250,000 pts internal Limited by USB memory size 843-R-USB

Model: 843-R-USB

Optical Power Meter, Economical Handheld, Laser Power & Energy

$1,342
In Stock
Product Series Overview
Economy Handheld Optical Power Meter
: Via PMManager
843-R

Model: 843-R

Optical power meter, economical, handheld, laser power and energy

$1,067
In Stock
Product Series Overview
Economy Handheld Optical Power Meter
: None		 User Commands, PMManager Via PMManager
Measurement Rate per Second Normal: 15
Fast Mode: 10,000		 10,000 15 15 15 15 
Trigger In/Out ✔ ✔
Analog Out ✔ ✔ ✔ ✔ ✔ ✔
Computer Interface USB
RS-232		 USB
RS-232		 USB
RS-232		 843-R-USB

Model: 843-R-USB

Optical Power Meter, Economical Handheld, Laser Power & Energy

$1,342
In Stock
Product Series Overview
Economy Handheld Optical Power Meter
: USB
843-R

Model: 843-R

Optical power meter, economical, handheld, laser power and energy

$1,067
In Stock
Product Series Overview
Economy Handheld Optical Power Meter
: None		 RS232 USB

1 Only available with model 1830-R-GPIB

Model: 1830-R-GPIB

Optical Power Meter, Low Power, 1830-R, USB, GPIB, and RS-232

Sorry, this product is no longer offered for sale. It was discontinued on  Feb 1, 2024.

Product Series Overview
Low Power Optical Meters

Additionally, please refer to Newport Power Meter and Detector Legacy and Compatibility for a complete list of meters that are compatible with this model.

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