Condition: Used

This Viavi JDSU OLS-37 is in excellent working condition. It is a three-wavelength singlemode optical laser source designed for testing FTTH and PON networks, operating at 1310 nm, 1550 nm, and 1490 nm. The unit is supplied as pictured and has been verified in full working order.

Included in the sale:
• FC adapter
• SC adapter

The images provided are of the actual item you will receive. Please review them carefully for the cosmetic condition and what is included in the sale.

The Viavi (formerly JDSU) OLS-37 is a three-wavelength singlemode optical laser source designed specifically for FTTH (Fibre to the Home) and PON (Passive Optical Network) testing applications. It outputs at the three key singlemode wavelengths used in modern PON architectures, making it suitable for loss testing, power verification, and network qualification during installation and maintenance.

The OLS-37 is designed for use with compatible optical power meters as part of a full optical loss test set (OLTS). Its support for 1490 nm alongside the standard 1310/1550 nm wavelengths makes it particularly suited to characterising FTTH deployments where downstream video or data signals operate at 1490 nm.

Key Specifications:
Wavelengths: 1310 nm, 1550 nm, 1490 nm
Fibre Type: Singlemode
Connector Compatibility: FC, SC (via interchangeable adapters)
Application: FTTH / PON network testing
Manufacturer: Viavi Solutions (formerly JDSU)

Please refer to the Viavi Solutions website for full technical specifications.

Shipping & Returns Policy

Shipping Policy

• Processing Time: Orders are typically processed and dispatched within 1 business day.
• Shipping Methods: We offer Expedited Shipping to all destinations using UPS/DHL/Fedex/Royal Mail and other reputable carriers.
• Shipping Times: Mainland UK: 1-2 Business Days / Mainland Europe and USA: 2-3 Business Days / Rest of the World 5-7 Business Days.
• Shipping Costs: These are calculated at checkout based on the shipping method, destination and package dimensions.
• CUSTOMS AND TAXES: It is YOUR responsibility to liaise with customs in your country and ensure your package is cleared and any taxes are paid.
• Shipping Destinations: We ship worldwide.
• Tracking: Once your order is shipped, we will provide you with a tracking number via email.
• Insurance: All shipments are insured. In case of damage, please contact us via email within 48 hours of receiving the product with photographic evidence, please also ensure a report is logged with the delivery driver.

Returns Policy

• Return Period: In the event of an item being received which is 'not as specified', you can return your purchase within 14 days of delivery.
• Condition of Items: Items must be returned unused and in their original packaging.
• Return Method: All returns must be notified in writing to hello@ttinstruments.com, the email should accompany the order number, date and reason for return and must be within 14 days of delivery.
• Restocking Fees: A restocking fee of up-to 20% is applicable for items returned for any reason other than 'not as specified'.
• Refund Method: Refunds are processed to the original method of payment within 5 business days of receiving the return.
• Exchanges: We do not offer exchanges. It will either be a replacement or a refund.
• Return Shipping Costs: Return shipping costs will be borne by the customer unless the item is 'not as specified', in this case we will arrange for the return by way of a prepaid shipping label.