High Refractive Index Ball Lens Caps

Efficient but not exorbitant.

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About

The Transistor outline caps fulfill two primary functions. First, they protect the optical components of transmission as well as reception applications. Second, they ensure the transmission of the optical signals by acting as an optical interface.

SCHOTT High Refractive Index Ball Lens Caps are low-cost alternative for Aspherical lens in PON market for Laser Packaging.

Product features

  • Available in diameters from 0.8 – 2.0mm.
  • Various high refractive index lens material to choose from.
  • Turned metal caps available in SF20T, SF20F, and other stainless steel versions.
  • Coupling Efficiency up to 30%.
  • Beneficial for Rx with small spot size, 20µm.
  • Many options to complement headers.

Product variants


Lens material LaSF H17 K-VC89 N-LaSF 44
n 2.00 1.81 1.78

Product images

SCHOTT TO Cap
SCHOTT TO Cap

Product performance

Lens: ball lens, n=1.974, diameter=1.5mm

Lens: Ball Lens, n=1.974, diameter=1.5mm

Laser diode: 1550nm, 28*34ed (FWHM), Fiber: Standard Single Mode Fiber (SMF)

Coupling efficiency

Coupling Efficiency

L2 and coupling efficiency eta vs. L1

Anti-reflection coating

SCHOTT high reflective cap graph

Broadband AR 1310-1550 for ball- and window caps