JDS FITEL HA9-Z034 100 dB Multimode Variable Optical Attenuator for 62.5/125 µm Fiber

JDS FITEL HA9-Z034 Multimode Variable Optical Attenuator

The JDS FITEL HA9-Z034 is a precision programmable variable optical attenuator configured for 62.5/125 µm multimode fiber. It is designed to provide controlled optical signal reduction for receiver testing, system loss simulation, optical component characterization, instrument calibration, and automated fiber optic measurement systems.

The HA9 platform provides an attenuation range of up to 100 dB across wavelengths from 1200 nm to 1700 nm. Attenuation can be set with 0.01 dB resolution at 1300 nm, supporting detailed control of optical power in laboratory and production applications.

The instrument includes a built-in optical on/off switch with greater than 110 dB isolation and a switching speed below 20 milliseconds. This shutter function allows the optical path to be interrupted without changing the programmed attenuation value or disabling the connected optical source.

The complete HA9-Z034 configuration should be retained from the physical instrument label because the suffix identifies a factory-selected combination of fiber, wavelength range, optical interface, and installed options. The product is identified here as a 62.5/125 µm multimode configuration. The installed connector type, port arrangement, and backreflection option should be verified directly from the unit before compatible patch cords are selected.

Features and Benefits of the JDS FITEL HA9-Z034

• 62.5/125 µm multimode fiber configuration: Designed for compatible multimode fiber optic systems and test assemblies.
• Wide attenuation range: Provides up to 100 dB of programmable optical attenuation.
• Broad wavelength coverage: Supports compatible optical signals from 1200 nm to 1700 nm.
• Fine attenuation settability: Provides 0.01 dB setting increments at 1300 nm.
• High repeatability: Offers attenuation repeatability of ±0.015 dB at constant temperature and wavelength.
• Accurate signal-level control: Supports precise attenuation for receiver characterization, component testing, and calibration workflows.
• Fast attenuation changes: Changes from 0 dB to 100 dB in 2.5 seconds or less.
• Integrated optical shutter: Provides greater than 110 dB isolation for optical on/off control.
• Fast shutter response: The built-in on/off switch operates in less than 20 milliseconds.
• High optical input capability: Supports optical input power up to 200 mW for the applicable multimode configuration.
• Low polarization sensitivity: Provides less than 0.1 dB peak-to-peak polarization sensitivity across the attenuation range.
• Automated testing support: Suitable for integration into computer-controlled laboratory and production systems.
• No scheduled recalibration requirement: The supplied specifications identify the recalibration period as not required.

100 dB Optical Attenuation Range

The JDS FITEL HA9 provides attenuation from 0 dB to 100 dB across the documented 1200 nm to 1700 nm wavelength range. This broad range allows the instrument to simulate low-loss and high-loss optical paths without repeatedly changing fixed attenuators or reconnecting the fiber system.

High attenuation is useful for receiver sensitivity testing, weak-signal simulation, optical detector characterization, link-budget evaluation, and measurements involving a wide range of received optical power.

The required attenuation can be programmed while the optical path remains connected. This helps reduce connector handling and supports repeatable automated test procedures.

62.5/125 µm Multimode Fiber Configuration

This HA9-Z034 is identified for use with 62.5/125 µm multimode fiber. Compatible multimode patch cords, sources, detectors, and devices under test should be used throughout the optical path.

The numerical aperture, launch condition, modal distribution, connector alignment, and fiber routing can influence multimode optical measurements. Reference cables and test conditions should remain consistent when comparative or calibrated measurements are performed.

Single-mode patch cords should not be substituted when the intended application requires controlled 62.5/125 µm multimode launch conditions.

Attenuation Accuracy and Repeatability

The HA9 platform provides attenuation accuracy of ±0.1 dB or ±0.004 dB per dB, whichever is greater, across the documented 1280 nm to 1340 nm and 1470 nm to 1550 nm wavelength regions for the applicable 1200 nm to 1700 nm model.

Attenuation repeatability is specified at ±0.015 dB under constant temperature and wavelength conditions. High repeatability supports test procedures that revisit the same attenuation values during receiver testing, calibration, production screening, and component qualification.

Complete system accuracy also depends on source stability, wavelength accuracy, patch-cord condition, connector cleanliness, multimode launch conditions, and the calibration status of the optical power meter used to verify the output.

0.01 dB Attenuation Settability

The attenuator provides 0.01 dB settability at 1300 nm. This fine adjustment allows optical power to be changed in controlled increments for detailed receiver and detector measurements.

The setting increment should not be interpreted as the total measurement uncertainty. Actual optical power at the output depends on insertion loss, attenuation accuracy, source stability, fiber coupling, modal distribution, connectors, and external optical components.

Built-In Optical On/Off Switch

The HA9 includes a built-in optical on/off switch that provides greater than 110 dB of isolation. The switch can interrupt the optical signal without changing the selected attenuation setting.

The documented switch speed is less than 20 milliseconds. This fast response supports dark measurements, receiver protection, automated test sequences, and rapid changes between signal-on and signal-off conditions.

The optical shutter should not replace normal laser-safety procedures. The source should still be disabled before connectors are inspected, cleaned, installed, or removed.

Optional Optical Switch and Splitter Configurations

The HA9 family was available with an optional 1 x 2 optical switch that allowed the instrument to select one of two optical inputs or outputs. When this switch was installed, the auxiliary 5 V output was not externally available.

Optional 50/50 and 10/90 optical splitter configurations were also available within the HA9 ordering system. These options should only be included in the product configuration when they are confirmed from the physical unit or complete model information.

The standard HA9-Z034 description should not assume the presence of an optional splitter or 1 x 2 switch unless the corresponding hardware is verified.

Typical Applications

• 62.5/125 µm multimode fiber testing
• Optical receiver sensitivity measurements
• Controlled optical loss simulation
• Optical detector characterization
• Fiber optic component testing
• Insertion loss and transmission measurements
• Optical power meter linearity testing
• Multimode transceiver evaluation
• Laboratory instrument calibration
• Automated optical-level sweeps
• Production screening and quality assurance
• Telecommunications research and development

Product Overview

Brand	JDS FITEL
Model	HA9-Z034
Product Series	HA9 Series
Product Category	Programmable Variable Optical Attenuator
Fiber Type	62.5/125 µm multimode fiber
Wavelength Range	1200 nm to 1700 nm
Attenuation Range	0 dB to 100 dB
Attenuation Settability	0.01 dB at 1300 nm
Optical Shutter	Built-in on/off switch with greater than 110 dB isolation
Primary Application	Precise multimode optical signal-level control and loss simulation

 

Optical Specifications

Specification	Details
Wavelength Range	1200 nm to 1700 nm
Attenuation Range	0 dB to 100 dB
Attenuation Settability	0.01 dB at 1300 nm
Attenuation Accuracy from 1280 nm to 1340 nm	±0.1 dB or ±0.004 dB per dB, whichever is greater
Attenuation Accuracy from 1470 nm to 1550 nm	±0.1 dB or ±0.004 dB per dB, whichever is greater
Attenuation Repeatability	±0.015 dB at constant temperature and wavelength
Maximum Optical Input Power	200 mW for the applicable multimode configuration
Polarization Sensitivity	Less than 0.1 dB peak-to-peak across the attenuation range
Attenuation Change Time	2.5 seconds or less from 0 dB to 100 dB
Optical Shutter Isolation	Greater than 110 dB
Optical Shutter Speed	Less than 20 ms
Recalibration Period	Not required

 

Multimode Insertion Loss Specifications

Fiber Configuration	Maximum Insertion Loss
Multimode Fiber with NA = 0.20	2.2 dB or less
Multimode Fiber with NA = 0.30	2.9 dB or less

 

Backreflection Specifications

Fiber Configuration	Low-Backreflection Option	Analog Option
Single-Mode Fiber	Less than -45 dB	Less than -60 dB
Multimode Fiber with NA = 0.20	Less than -40 dB	Not specified
Multimode Fiber with NA = 0.30	Less than -35 dB	Not specified

 

Environmental and Physical Specifications

Specification	Details
Operating Temperature	0 °C to 40 °C
Storage Temperature	-40 °C to +60 °C
Humidity	Up to 95% relative humidity at 40 °C, decreasing by 5% per °C from 40 °C to 60 °C
Dimensions	35.5 x 21.2 x 8.9 cm
Weight	3.75 kg

 

Available HA9 Fiber Configurations

Fiber Code	Fiber Type
0	50/125 µm
1	62.5/125 µm
2	85/125 µm
3	100/140 µm
5	9/125 µm
Z	Special factory-specified fiber configuration

 

Available Connector Types

Connector Code	Connector Type
NO	No connector
FC	FC
FP	FC/PC
FA	FC/APC
BC	Biconic
ST	ST
SP	ST/PC
D4	D4

 

Configuration Verification

The physical model label should be retained as HA9-Z034. The Z element identifies a special factory-specified fiber configuration within the published HA9 ordering system. The unit is described as 62.5/125 µm multimode based on the supplied product identification.

The exact input and output arrangement should be inspected before listing compatible patch cords. HA9 instruments could be configured with front-panel pigtails or bulkhead interfaces and with several connector families.

Optional splitters, a 1 x 2 optical switch, and low-backreflection configurations were available. These functions should only be assigned when the corresponding hardware or option code is confirmed.

Measurement Setup

The attenuator should be installed on a stable laboratory bench or in a suitable equipment rack with adequate clearance for ventilation, optical cables, communication cables, and AC power.

Compatible 62.5/125 µm multimode patch cords should be connected to the optical input and output. All connectors should be inspected and cleaned before mating.

A sensitive receiver or detector should initially be connected with the instrument set to a high attenuation value. Attenuation can then be reduced gradually while optical power and device response are monitored.

The source wavelength should remain within the 1200 nm to 1700 nm operating range. The optical input must remain below the applicable 200 mW maximum rating.

Comprehensive Functional and Performance Testing

The JDS FITEL HA9-Z034 receives comprehensive functional and performance testing before shipment. Evaluation may include AC power operation, startup, front-panel controls, display response, attenuation adjustment, optical shutter operation, and remote communication where available.

Optical testing may include input-to-output continuity, insertion loss, representative attenuation values, repeatability, attenuation range, response time, and on/off isolation using compatible multimode sources and calibrated optical power meters.

The optical interfaces, pigtails or bulkheads, connectors, shutter, front-panel controls, display, communication ports, AC inlet, enclosure, labels, and installed options may be inspected for contamination, damage, corrosion, or excessive wear.

The exact testing scope depends on the verified connector type, port arrangement, installed options, available multimode sources, reference patch cords, optical power meters, and requested wavelengths and attenuation values.

Calibration Before Shipment

When technically applicable and selected, the JDS FITEL HA9-Z034 can be calibrated or performance-verified before shipment. Evaluation may include insertion loss, attenuation accuracy, attenuation repeatability, wavelength response, polarization sensitivity, optical shutter isolation, and switching speed.

Calibration documentation should identify the attenuator model and serial number, fiber configuration, optical connectors, test wavelength, source launch condition, attenuation settings, input power, reference patch cords, measurement equipment, recorded results, and applicable measurement uncertainty.

Buyers requiring formal calibration should specify the desired wavelengths, attenuation points, launch conditions, connector configuration, certificate format, recorded data, and required measurement uncertainty before purchase.

Buyer Considerations

Buyers should confirm the complete model as JDS FITEL HA9-Z034 and verify the 62.5/125 µm multimode configuration, optical connector type, port arrangement, and installed options.

The product listing should identify whether optical patch cords, connector adapters, communication cables, rack hardware, power cord, manual, test records, or calibration documentation are included.

Only the JDS FITEL HA9-Z034 attenuator 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, telecommunications, optical testing, photonics, laboratory, production, inspection, electronic testing, RF/microwave, and technical research applications. The JDS FITEL HA9-Z034 provides controlled multimode optical attenuation for component manufacturers, receiver developers, telecommunications laboratories, production facilities, system integrators, universities, and research organizations.

Buyers should review the 62.5/125 µm multimode configuration, wavelength and attenuation ranges, optical interfaces, insertion loss, shutter operation, remote-control functions, installed options, functional test results, calibration status, and included accessories before purchase.