Coreray: Leading Fiber Optic Switch Manufacturer - MEMS & Mechanical Optical Solutions

Introduction

The explosion of data traffic in cloud computing, 5G backhaul, and video streaming has placed immense pressure on fiber optic infrastructure. Network operators must dynamically reconfigure optical paths to ensure reliability, test new equipment, and scale capacity. At the heart of this flexibility lies the optical switch – a device that physically redirects light from one fiber to another without electro‑optic conversion. Among the various technologies, MEMS (Micro‑Electro‑Mechanical System) and mechanical optical switches dominate the market. Understanding their differences is crucial for selecting the right solution. This article explores both technologies and introduces a high‑density platform that combines their benefits: the Coreray OSW series.

1. MEMS Optical Switch: Speed and Miniaturization

MEMS optical switches use microscopic mirrors (fabricated on silicon wafers) to steer light beams. When a voltage is applied, the mirror tilts, redirecting the light to a desired output fiber. Key advantages include:

• Fast switching time – typically 1‑10 ms, ideal for protection switching and test automation.

• Compact footprint – thousands of mirrors can be integrated on a single chip, enabling high port counts in a small package.

• Low power consumption – electrostatic actuation requires minimal energy.

• High reliability – no moving parts (except the mirror itself) and no mechanical wear.

However, MEMS switches may have slightly higher insertion loss than mechanical switches and are sensitive to vibration and dust in unsealed environments. They excel in data center interconnects and reconfigurable optical add‑drop multiplexers (ROADMs).

2. Mechanical Optical Switch: Robustness and Low Loss

Traditional mechanical optical switches use precision motors, solenoids, or piezo actuators to physically move a fiber or a prism. The light path is altered by aligning the input fiber with one of several output fibers. Strengths include:

• Extremely low insertion loss (< 0.5 dB typical) – the light travels through air or direct fiber contact.

• High power handling – can support hundreds of milliwatts without damage.

• Wavelength independence – works equally well at 850 nm, 1310 nm, and 1550 nm.

• Excellent stability – unaffected by temperature or vibration once latched.

The trade‑off is slower switching speed (10‑50 ms) and larger size. Mechanical switches are often chosen for test instrumentation, fiber sensing, and high‑power applications.

3. Combining Technologies: The OSW Series Approach

The OSW‑(6‑D1×16 + 2‑D1×4) takes advantage of both worlds. It is a modular platform that can be populated with either MEMS‑based or mechanical‑based dual switch modules, depending on customer requirements. For example:

• For a data center needing fast failover, MEMS modules (12 ms switching) are installed.

• For a fiber sensor network requiring ultra‑low loss and high stability, mechanical modules are used.

This flexibility allows network architects to standardize on a single chassis while tailoring each switching bank to the specific application. The OSW chassis also incorporates independent control per module, so mixed technologies can coexist and be managed through the same RS‑232 or Ethernet interface.

4. High‑Density Design: 112 Channels in 4U

Space is at a premium in modern racks. The OSW series packs six dual 1×16 switches and two dual 1×4 switches into a 4U enclosure, delivering up to 112 bidirectional channels (each channel comprises a Tx and an Rx path). Traditional 1U switches often provide only 16‑32 channels, so this density represents a significant saving in rack space and cabling complexity.

How is this achieved?
Each dual switch module contains two independent 1×N switches in a single housing. By using compact optical engines (MEMS arrays or miniaturized mechanical actuators) and high‑density fiber management, Coreray engineers have maximized port count without compromising performance.

5. Application Case Studies

5.1 Automated Test System for 40G Transceivers

A leading telecom test house needed to cycle signals through dozens of transceivers for burn‑in testing. They deployed an OSW with MEMS modules for fast switching (12 ms) between devices. The RS‑232 control allowed seamless integration with LabVIEW, reducing test time by 40%.

5.2 Data Center Disaster Recovery

A cloud provider required a redundant link architecture between two data centers. Mechanical OSW modules were chosen for their ultra‑low loss to preserve signal strength over long single‑mode fibers. The 1×16 switches automatically reroute traffic in case of fiber cut, with failover completed in < 50 ms.

5.3 Distributed Acoustic Sensing (DAS) Network

An oil & gas monitoring system uses fiber optic cables to detect vibrations. The OSW chassis, populated with mechanical 1×4 switches, periodically connects different sensing fibers to a single interrogator. The high isolation (>60 dB) ensures no crosstalk between measurement channels.

6. Why Choose Coreray as Your Optical Switch Manufacturer?

Coreray (www.coreray.com) has over a decade of experience in designing and manufacturing custom fiber optic switches. We offer:

• Tailored solutions – Choose your switch technology (MEMS or mechanical), port configuration, connector type, and fiber length.

• Rigorous quality control – Every unit undergoes temperature cycling and burn‑in to ensure field reliability.

• Competitive pricing – As a direct manufacturer, we provide cost‑effective products without compromising quality.

• Global support – Our engineering team assists with integration and troubleshooting.

Whether you need a high‑density MEMS switch for a hyperscale data center or a rugged mechanical switch for industrial monitoring, the OSW series delivers.

Conclusion

The evolution of optical switching technology has given network designers

powerful tools to build flexible, resilient fiber infrastructures. MEMS switches offer speed and density; mechanical switches offer loss and power advantages. The Coreray OSW‑(6‑D1×16 + 2‑D1×4) uniquely combines both technologies in a high‑density, independently controllable platform. By choosing the right optical switch manufacturer, you ensure that your network is ready for tomorrow’s demands.

Contact us today to discuss your custom optical switch requirements. Let Coreray help you optimize your optical layer.