AFL NOYES LS1D 850/1300 nm Multimode LED Light Source with Wave ID

AFL NOYES LS1D 850/1300 nm Multimode LED Light Source

The AFL NOYES LS1D is a compact dual-wavelength optical light source designed for testing multimode fiber optic cables and networks at 850 nm and 1300 nm. The handheld instrument provides a stable optical signal for insertion loss measurements, link qualification, installation testing, maintenance, troubleshooting, and verification of compatible multimode fiber systems.

The LS1D supports individual 850 nm and 1300 nm operation as well as dual-wavelength Wave ID transmission. When used with a compatible Wave ID optical power meter, the receiving instrument can automatically identify the active test wavelength and apply the corresponding calibration setting. This simplifies dual-wavelength testing and helps reduce errors caused by manually selecting the wrong wavelength on the power meter.

The documented calibrated output is approximately -19 dBm at both 850 nm and 1300 nm. Verification and calibration are performed using a 62.5/125 µm multimode reference jumper and a calibrated optical power meter. This makes the LS1D suitable for professional multimode fiber testing in enterprise networks, premises cabling, data communications, telecommunications facilities, industrial systems, and laboratory environments.

The LS1D is a source-only instrument and does not independently measure optical power or link loss. A compatible optical power meter, suitable reference jumpers, and the correct connector adapter are required to create a complete optical loss test set.

Features and Benefits of the AFL NOYES LS1D

The AFL NOYES LS1D provides practical dual-wavelength testing capability in a portable instrument designed for field and laboratory use.

• Dual-wavelength multimode source: Provides optical output at 850 nm and 1300 nm for testing common multimode fiber links.
• Wave ID transmission: Allows compatible optical power meters to automatically identify the active wavelength.
• Approximately -19 dBm output: Provides the documented calibrated optical level at both supported wavelengths.
• Individual wavelength operation: Allows 850 nm or 1300 nm output to be selected for manual test procedures.
• Dual-wavelength operation: Supports a combined 850/1300 nm Wave ID mode for efficient two-wavelength measurements.
• Multimode fiber compatibility: Designed for use with compatible 62.5/125 µm multimode reference jumpers and fiber systems.
• Portable field design: Provides a compact source for installation, maintenance, troubleshooting, and service applications.
• Simple keypad operation: Uses dedicated power and wavelength controls for straightforward setup.
• Low-battery indication: Provides a visible status indicator to help identify when battery service is required.
• Interchangeable adapter support: The optical test port accepts compatible adapter caps for connection to the required fiber interface.
• Calibratable output: Supports verification and adjustment of the 850 nm and 1300 nm output levels using appropriate reference equipment.
• Professional loss testing: Suitable for use with a compatible power meter to measure insertion loss on installed multimode fiber links.

850 nm Multimode Testing

The 850 nm operating wavelength is commonly used for multimode local-area networks, enterprise cabling, data center links, equipment rooms, campus networks, and short-reach optical communication systems.

When 850 nm is selected, the LS1D provides a calibrated output of approximately -19 dBm through the optical test port. A compatible multimode reference cable carries the test signal to an optical power meter or the fiber link under evaluation.

Testing at 850 nm helps identify insertion loss caused by fiber attenuation, connector contamination, poor terminations, damaged adapters, excessive bends, and other conditions affecting short-wavelength multimode performance.

1300 nm Multimode Testing

The 1300 nm output supports the second standard wavelength commonly used for multimode fiber qualification. Measuring a link at both 850 nm and 1300 nm provides a more complete evaluation than testing at only one wavelength.

The LS1D provides approximately -19 dBm of calibrated output at 1300 nm. The receiving power meter must be configured for 1300 nm or support automatic Wave ID recognition to provide an accurate measurement.

A fiber link may perform differently at 850 nm and 1300 nm because attenuation, source launch conditions, connector condition, fiber bends, and component response can vary with wavelength. Dual-wavelength testing helps identify these differences.

Wave ID Automatic Wavelength Identification

Wave ID is designed to simplify optical loss testing by communicating wavelength information to a compatible optical power meter. When the LS1D operates in 850/1300 nm Wave ID mode, a supported power meter can automatically switch between the corresponding wavelength settings.

This reduces the number of manual steps required during testing and helps prevent measurements from being recorded with an incorrect wavelength calibration. Wave ID is particularly useful when many fibers must be tested at both wavelengths.

The connected power meter must support the applicable AFL NOYES Wave ID function. A power meter without Wave ID can still be used by selecting the wavelength manually and operating the LS1D at one wavelength at a time.

Calibrated -19 dBm Optical Output

The documented output level is approximately -19 dBm at both 850 nm and 1300 nm. This calibrated output supports reference measurements and optical loss testing when the instrument is used with compatible multimode test jumpers and a calibrated optical power meter.

Actual power measured at the far end of a test jumper can be affected by connector cleanliness, adapter condition, reference cable loss, fiber routing, source stability, and the calibration status of the receiving power meter.

The source output should be verified periodically when dependable test results are required. Output verification is performed separately at 850 nm and 1300 nm using suitable reference equipment.

Multimode Fiber Test Configuration

The documented verification and calibration method uses a 62.5/125 µm multimode jumper between the LS1D output and the reference optical power meter. The jumper should be in good condition and should have clean, compatible connectors.

Multimode measurements can be affected by source launch conditions, modal distribution, connector alignment, fiber bends, and reference cable quality. The same reference jumper and connection method should be used consistently during calibration and link testing.

Before testing begins, the source port, adapter cap, reference jumper, and power-meter input should be inspected and cleaned. Contamination at any connection can produce additional loss and inaccurate results.

Typical Optical Loss Measurement Workflow

A complete optical loss measurement normally begins by connecting the LS1D directly to a compatible optical power meter through a known reference jumper. The source and meter are set to the same wavelength, and the meter establishes the reference level.

After the reference is stored, the fiber link under test is inserted into the optical path using the required reference cables and adapters. The difference between the reference level and received level represents the measured insertion loss of the link and its included connections.

The measurement can then be repeated at the second wavelength. When compatible Wave ID equipment is used, wavelength changes can be recognized automatically by the receiving meter.

Typical Applications

The AFL NOYES LS1D is suitable for professional applications such as:

• 850 nm multimode fiber testing
• 1300 nm multimode fiber testing
• Dual-wavelength insertion loss measurement
• Wave ID testing with compatible optical power meters
• Enterprise network installation
• Premises cabling certification
• Campus and data communications networks
• Fiber optic maintenance and troubleshooting
• Patch-cord and connector testing
• Optical link verification
• Laboratory fiber optic training
• Production and quality-control testing

Product Overview

Optical Specifications

Controls and Indicators

Optical Port Inspection and Cleaning

The installed adapter cap should be removed before the internal optical interface is inspected. The adapter’s split ceramic sleeve should be checked for cracks or breakage because a damaged sleeve can cause poor alignment, unstable readings, or low optical output.

The instrument must be switched off before the output ferrule is inspected with a suitable fiber optic inspection scope. The ferrule should be cleaned using an optical-grade wipe and 99% isopropyl alcohol when contamination is present.

After cleaning, the ferrule should be reinspected before the adapter cap is reinstalled. If the output ferrule is physically damaged and cannot be restored through cleaning, the internal optical pigtail may require professional replacement.

The source port should be protected with a clean dust cap whenever the LS1D is not in use. Dirty protective caps should not be placed on a cleaned optical interface.

Comprehensive Functional and Performance Testing

The AFL NOYES LS1D receives comprehensive functional and performance testing before shipment. Evaluation may include physical inspection, power-on operation, keypad response, wavelength selection, status indicators, low-battery indication, and Wave ID functionality.

The optical port, adapter cap, split sleeve, and output ferrule may be inspected for contamination, physical damage, excessive wear, or unstable mechanical alignment. The connector is cleaned using approved fiber optic procedures when required.

Optical testing may include measurement of the 850 nm and 1300 nm outputs using a calibrated optical power meter and a clean 62.5/125 µm multimode reference jumper. Output at each wavelength may be verified against the documented -19 dBm level.

Wave ID testing may include confirming that a compatible optical power meter automatically changes between 850 nm and 1300 nm while the source operates in dual-wavelength mode.

The exact testing scope depends on the installed adapter cap, battery condition, available reference jumper, compatible power meter, current calibration status, and included accessories.

Calibration Before Shipment

When technically applicable and selected, the AFL NOYES LS1D can be calibrated before shipment. Calibration includes separate output adjustment at 850 nm and 1300 nm using a calibrated optical power meter and a compatible 62.5/125 µm multimode jumper.

Each wavelength is adjusted to the documented -19 dBm output level. After adjustment, the instrument is returned to normal operating mode, power is cycled, and both wavelengths and Wave ID operation are verified.

Calibration documentation should identify the LS1D model and serial number, installed adapter, reference jumper, test wavelengths, measured output levels, optical power meter, environmental conditions, recorded results, and applicable measurement uncertainty.

Buyer Considerations

Buyers should confirm the instrument model, installed connector adapter, battery condition, 850 nm and 1300 nm output, Wave ID operation, and current calibration status.

The product listing should identify whether the adapter cap, protective cap, 62.5/125 µm multimode reference jumper, optical power meter, DC power adapter, batteries, carrying case, manuals, and calibration documentation are included.

Only the AFL NOYES LS1D light source and accessories specifically identified in the product listing should be considered included.

Why Buy from AssetRelay?

AssetRelay supplies professional equipment and product solutions for fiber optic installation, telecommunications, optical testing, fusion splicing, inspection, cleaning, laboratory, production, electronic testing, RF/microwave, and technical research applications. The AFL NOYES LS1D supports network installers, telecommunications contractors, service organizations, test laboratories, production facilities, universities, and fiber optic training programs.

Buyers should review the 850 nm and 1300 nm outputs, Wave ID operation, optical port condition, adapter compatibility, battery status, functional test results, calibration status, and included accessories before purchase.