FOR OPTICAL TRANSCEIVER DESIGN TEAMS

Silicon microlenses for precise optical coupling.

Choose a lens that fits both your optical path and assembly process. Explore SUNA single lenses, U-groove options and silicon microlens arrays for TOSA and ROSA designs.

Request a Quote Explore the solutions

Single lensesLens arraysU-groove options

SUNA optical transceiver with TX Scenarios enlargement at upper left and RX Scenarios enlargement at lower right, connected to the corresponding module sections

Optical module · TX / RX scenarios

Designed for integrationSilicon lens formats for compact optical modules

Assembly-focused detailsU-groove designs help manage UV adhesive overflow

Application-led inquiryTell us your optical and packaging requirements

THE ASSEMBLY CHALLENGE

Optical performance starts with how the lens is mounted.

During lens attachment, UV adhesive can flow toward the optical surface. SUNA's U-groove lens option is designed to help manage that overflow during bonding.

That is one detail to consider alongside lens geometry, wavelength and channel layout when choosing an optic for your module.

See available lens formats

U-GROOVE DETAIL SUNA U-groove silicon microlens

U-grooveDesigned to help keep UV adhesive away from the lens surface

FIND YOUR FORMAT

Choose the lens format that fits your design.

Start with your application. SUNA can discuss the lens geometry and product parameters required for your module.

01 / SINGLE LENS Single silicon microlens with U-groove

U-groove silicon microlens

A single-lens option for optical module packaging. The U-groove helps keep UV adhesive away from the lens surface during attachment.

Optical transceiversTOSA

Ask for a quote

02 / LENS ARRAY Silicon microlens array with U-grooves

U-groove silicon microlens array

An array format for multi-channel optical coupling, with U-groove features designed for the lens bonding process.

Optical transceiversROSA

Ask for a quote

03 / ALIGNMENT OPTION SUNA silicon microlens with metal alignment marks

Silicon microlens with metal marks

Metal marks help coupling equipment identify the lens position during optical assembly.

Optical transceiversAssembly

Ask for a quote

Lens images are from SUNA's public product pages. Final dimensions and optical specifications depend on the selected design.

APPLICATION GUIDE

Match the lens format to the module.

A quick guide to the lens options shown in SUNA's optical transceiver material. Share your design requirements to confirm the right fit.

TOSA

Transmitter optical subassembly

Single lens

Custom spherical or aspherical surface profiles for the optical path.

Ball Mark Lens

Achieve precise optical alignment.

Silicon microlens with U-groove

Designed to help prevent UV adhesive overflow from reaching the lens surface.

Silicon microlens with metal alignment marks

Silicon microlens with metal mark

The metal mark helps assembly equipment identify the lens position.

Double-sided orthogonal cylindrical silicon lens

Double-sided orthogonal cylindrical lens

Used for laser spot shaping in optical coupling designs.

ROSA

Receiver optical subassembly

Lens Array

Ideal for highly integrated, multi-channel PIC designs.

Silicon microlens array with U-groove

An array option whose U-groove helps prevent UV adhesive overflow from reaching the lens surfaces.

REFERENCE SPECIFICATIONSNeed more technical detail?Browse the silicon lens reference table from SUNA's application material. For the latest specifications applicable to your design, please contact SUNA.View detailed specifications

Silicon lens reference table

The source table includes coupling, collimating and focusing lens models. Specifications depend on the selected design.

Open original-size image ↗

SUNA reference specification table for coupling, collimating and focusing silicon lens models

On a phone, swipe sideways to read each column.

Discuss the specifications for your project

WHERE THEY FIT

Built around the optical transceiver.

Explore the single-lens and lens-array configurations used in TOSA and ROSA designs.

Discuss your application

TOSA

Single silicon lenses can be used in transmitter optical subassemblies for optical coupling and beam shaping.

ROSA

Silicon microlens arrays can support multi-channel receiver optical subassembly layouts.

Custom requirements

Share your wavelength, lens geometry and packaging needs to start an engineering discussion.

TOSA diagram showing EML, Lens 1, Isolator, Lens 2, TX Fiber Array, and a U-groove lens detail

View TOSA image full size

ROSA diagram showing a silicon lens array, RX Fiber Array, PD Array, TIA, and U-groove details

View ROSA image full size

DESIGN WITH SUNA

Bring your requirements into a practical engineering discussion.

SUNA describes in-house design, manufacturing and testing capabilities. Share your target parameters to explore a suitable lens approach.

◇

Lens design options

Discuss the optical profile and dimensions needed for your application.

⌁

Process capabilities

SUNA describes in-house lithography, etching, coating and related processes.

◎

Application testing

Technical discussions can be grounded in optical coupling and packaging requirements.

COMMON QUESTIONS

Before you request a quote.

Answers to a few practical questions about lens selection and your inquiry.

Discuss your design

Are these lenses for TOSA or ROSA?

Single lenses and lens arrays can be discussed for optical transceiver designs. The right format depends on your optical path, channel layout and packaging requirements.

What does the U-groove do?

The U-groove is designed to help manage UV adhesive overflow during lens attachment, keeping adhesive away from the lens surface.

Can SUNA discuss a design for my project?

Yes. Share your target wavelength, lens geometry, channel layout and packaging needs so the team can assess a suitable approach.

What should I include in my inquiry?

Tell us your application, the lens type you need and any known optical parameters. Drawings or other design details can help guide the follow-up discussion.

LET'S TALK ABOUT YOUR DESIGN

Request a quote.

Tell SUNA what you are building so the team can discuss the right silicon microlens approach for your application.

↗

What should you include?Your application, lens type and any known optical or packaging requirements. You can leave a short description and continue the discussion with the SUNA team.

Keep In Touch

Fields marked * are required.