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Alps Alpine Develops Lens Array with Mirror for Optical Transceivers

Alps Alpine has developed the FLHL2 Series Lens Array with Mirror for optical transceivers that are used, for example, in optical networks for data centers.

The recent rise in the application of the Internet of Things (IoT) technology and artificial intelligence points to an expected threefold increase in global IP traffic between 2017 and 2022. This will be buoyed further by other trends, such as the introduction of 5G mobile and wireless networks.

Optical transceivers used in facilities like data centers will need to be much faster and have higher density, demanding even greater size reductions and high-density mounting of the components inside them.

Responding to these needs, Alps Alpine has developed the FLHL2 Series, with a 0.75mm lens pitch and dimensions of 1.3 × 1.3 × 3.5mm (H×W×L), which integrates condenser lens and mirror components of an optical transceiver receiver. Lenses and mirror previously had to be positioned separately to convey light to the photodiode. Integrating these two components helps to reduce the number of parts and shorten the optical distance, thereby contributing to downsizing of optical transceivers. Cutting the number of components also reduces the work required for transceiver assembly, leading to lower costs.

The Key Features of the Optical Transceivers

  1. Lens array combining condenser lenses and mirror helps downsize optical transceivers and reduce the manufacturing workload
  2. Glass lens with little light loss, based on a strong track record over many years
  3. Lead-free glass (RoHS-compliant)

Comparison with Existing Design
FLHL2 Series Lens Array

Specifications

FLHL2 Series Key FeaturesAvailability

The FLHL2 Series – mass production will begin in August this year – was designed for existing optical transceivers, but Alps Alpine also looks to develop lens arrays with 0.5mm and 0.25mm lens pitches in anticipation of future market requirements for downsizing and multi-channel transceivers as IoT spreads and 5G services are introduced.

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Jyoti Gazmer

A Mass Comm. graduate believes strongly in the power of words. A book lover who dreams to own a library some day. An introvert but will become your closest friend if you share mutual feelings about COFFEE. I prefer having more puppies over humans.

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