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The Yamasaki TLU6 1310 1490 1625 nm Optical Light Source delivers three selectable wavelengths for singlemode fibre testing. Furthermore, adjustable output power, tone generation and an ambient light-adjusting LCD support practical field use. Pair it with the TPU1 Optical Power Meter and RapidConnect Reference Cable Kit for insertion loss testing. FC, SC and ST connection options are included, with an LC adaptor available on request.
The Yamasaki TLU6 1310 1490 1625 nm Optical Light Source provides three selectable wavelengths for singlemode fibre testing. Furthermore, pairing it with a compatible optical power meter allows technicians to measure insertion loss at each wavelength. For pricing and assistance with your testing configuration, request a Rapid Quote.
In addition, this portable instrument combines adjustable output power, tone generation and Wave ID functionality. Consequently, it provides a practical option for customers who require this specific wavelength combination.
Selecting the correct light source starts with your network specification. Therefore, the TLU6 focuses on applications requiring 1310 nm, 1490 nm and 1625 nm testing.
However, different networks require different test wavelengths. Before choosing your equipment, confirm the requirements of the network owner and project test plan.
1310 nm is a widely used wavelength for singlemode fibre testing. In addition, conventional GPON networks use this wavelength for upstream transmission.
Therefore, the TLU6 supports loss measurements at a wavelength relevant to these optical paths. However, technicians must still follow the specified test direction and reference procedure.
Conventional GPON networks use 1490 nm for downstream transmission. Consequently, this output allows technicians to assess passive optical path loss at the corresponding service wavelength.
Furthermore, testing at the specified wavelength helps align measurements with the network’s operating requirements. However, other PON technologies use different wavelengths, so confirm the network technology before selecting your source.
1625 nm provides a longer wavelength for supplementary singlemode loss assessment. In particular, longer wavelength testing can reveal bending-related losses that appear less pronounced at 1310 nm.
However, a light source and power meter measure the overall loss of the tested path. Therefore, use an appropriate OTDR when you need to locate individual events or determine their distance.
The TLU6 combines selectable wavelengths with practical handheld testing features. In addition, its adjustable output and modulation options support different test tasks.
Key features include:
Furthermore, its portable design supports testing in the field, workshop or factory. Meanwhile, the ambient light sensor adjusts the display brightness to suit the surroundings.
| Specification | Yamasaki TLU6 |
|---|---|
| Operating wavelengths | 1310, 1490 and 1625 nm |
| Applicable fibre | Singlemode |
| Laser type | FP-LD |
| Adjustable output power | −12 to −5 dBm |
| Output adjustment step | Less than 0.5 dB |
| Output stability | 0.15 dB over 30 minutes at 20°C |
| Operating modes | CW, 270 Hz, 330 Hz, 1 kHz and 2 kHz |
| Instrument fibre port | FC/PC |
| Batteries | Three 1.5 V AA alkaline batteries |
| Power supply adaptor | 8.4 V |
| Listed battery operating time | 45 hours |
| Operating temperature | −10°C to +60°C |
| Storage temperature | −25°C to +70°C |
| Dimensions | 180 × 90 × 45 mm |
| Listed weight | 250 g |
These specifications follow the TLU6 datasheet. However, actual battery operating time depends on battery quality and operating conditions.
For additional product information, download the Yamasaki TLU6 datasheet.
The TLU6 allows technicians to adjust optical output power between −12 and −5 dBm. Consequently, users can select an output level appropriate to the measurement setup.
Furthermore, continuous wave operation provides a steady optical signal for compatible power measurements. Alternatively, selectable modulation frequencies support tone-based tasks when used with compatible receiving equipment.
In addition, Wave ID functionality can assist wavelength recognition with a compatible meter. However, confirm the receiving instrument’s supported functions before relying on automatic identification.
A light source launches the test signal into the fibre. Meanwhile, an optical power meter measures the light received at the opposite end.
First, technicians establish a reference level using the selected test method. Then, they measure the optical path and determine its insertion loss.
Therefore, the power meter must support the selected wavelength and expected received power range. Furthermore, matching the source and meter settings helps prevent measurement errors.
The Yamasaki TPU1 Intelligent Optical Power Meter is a recommended companion for the TLU6. In addition, the TLU6 datasheet identifies the TPU1A high-power variant as another pairing option.
Before ordering, confirm the meter configuration for all three wavelengths. Likewise, confirm any result-storage and download requirements for your project.
Reference cables form an essential part of an insertion loss testing setup. Consequently, their condition and connector compatibility affect measurement reliability.
The RapidConnect Reference Cable Kit provides a related product option when configuring your test equipment. However, select the kit configuration that matches your fibre, connectors and reference method.
First, confirm the singlemode fibre type and connector requirements. Next, inspect and clean every connector before making the test connections.
Then, select the required wavelength on both instruments. After establishing the reference, measure the optical path and record the result.
Finally, repeat the procedure at each additional wavelength required by the test plan. If you change the reference connections or source output, check whether you need to establish a new reference.
Connector compatibility involves both the mechanical interface and the end-face polish. Therefore, confirm whether each connection requires PC, UPC or APC components.
Furthermore, the TLU6 specification lists an FC/PC instrument port. An adaptor changes the mechanical interface; however, it does not make an APC connector suitable for direct mating with a PC interface.
Consequently, specify reference cables with the correct connector and polish at each end.
Choose the TLU6 when your test specification requires 1310 nm, 1490 nm and 1625 nm. However, this model does not provide a 1550 nm output.
Therefore, consider another model if your project requires a different wavelength combination.
| Required wavelengths | Related Yamasaki light source |
|---|---|
| 1310 and 1550 nm | TLU3 Singlemode Optical Light Source |
| 1310, 1550 and 1625 nm | TLU4 Optical Light Source |
| 1310, 1490 and 1550 nm | TLU5 Optical Light Source |
| 1310, 1490 and 1625 nm | Yamasaki TLU6 |
Although several models provide three wavelengths, their applications differ. Consequently, select the combination that meets your actual test requirements.
Reliable fibre testing requires more than selecting an instrument. Furthermore, technicians need to understand wavelength selection, reference procedures, connector condition and measurement limits.
Accordingly, this Knowledge Centre focuses on the practical decisions involved in using a 1310 1490 1625 nm optical light source.
Understand how 1310 nm and 1490 nm relate to conventional GPON optical paths. In addition, explore the role of supplementary 1625 nm testing.
However, always match the wavelength combination to the network technology and project specification.
Review singlemode reference cable selection, connector compatibility and reference procedures. Furthermore, understand how inspection and cleaning support repeatable measurements.
Likewise, consider how changes to the reference connections can affect subsequent results.
Learn the difference between optical power readings in dBm and insertion loss results in dB. Additionally, understand why a compatible power meter and correctly established reference are essential.
Consequently, technicians can interpret results against the appropriate project limits.
Compare measured loss with the project’s acceptance criteria. If a result exceeds the permitted limit, inspect the connections and verify the test setup.
Then, repeat the measurement where appropriate. Alternatively, use an OTDR when further investigation requires event location and distance information.
For additional fibre optic education, visit the Anderson Corporation YouTube channel.
The TLU6 provides 1310 nm, 1490 nm and 1625 nm outputs for singlemode fibre testing. However, it does not include a 1550 nm output.
The TLU6 is specified for singlemode testing. Therefore, choose a suitable multimode source when your test plan requires 850 nm and 1300 nm.
Its 1310 nm and 1490 nm outputs correspond to conventional GPON upstream and downstream wavelengths. Consequently, it can form part of a suitable passive optical path loss-testing setup.
However, confirm the test procedure, splitter losses and power meter range before testing. Likewise, check whether the network uses conventional GPON or another PON technology.
1625 nm provides supplementary information about optical path loss at a longer wavelength. In particular, it can help reveal bending-related loss that appears less pronounced at 1310 nm.
However, this measurement does not identify the location of the bend. Therefore, use an appropriate OTDR when you need distance information.
A 1625 nm output alone does not establish suitability for live-network testing. Therefore, do not assume the TLU6 supports in-service testing simply because it includes this wavelength.
Instead, confirm an approved procedure and suitable equipment for the network. Furthermore, any necessary wavelength isolation or filtering must form part of that assessment.
A light source and power meter measure end-to-end insertion loss. However, they do not determine the distance to an individual fault.
Therefore, use an appropriate OTDR when you need to locate events along the fibre.
The TLU6 datasheet recommends the TPU1 and TPU1A power meters. However, confirm the selected meter’s wavelength settings and measurement range for your application.
For the standard companion product, view the Yamasaki TPU1 Intelligent Optical Power Meter.
The product lists FC, SC and ST connection options. In addition, an LC adaptor is available on request.
However, confirm connector polish and reference cable compatibility before connecting the equipment.
Start with a compatible optical power meter and suitable reference cables. Additionally, include connector inspection and cleaning equipment.
Finally, confirm that the complete package supports your required wavelengths, connector interfaces and test procedure.
The Yamasaki TLU6 1310 1490 1625 nm Optical Light Source provides a focused wavelength combination for singlemode fibre testing. Furthermore, pairing it with a suitable optical power meter and reference cables creates a practical setup for measuring optical path loss.
To confirm pricing and your equipment configuration, request a Rapid Quote. Include your required wavelengths, connector types and testing application. Then, Anderson Corporation can help identify the appropriate package for your project.
