High-Speed PLZT Optical Switches
1xN Optical Switches

NxN Optical Switches

High-Speed PLZT Optical Switching Systems
Optical Switching Systems

High-Speed PLZT VOA
N Channel High-Speed VOA

Custom PLZT Photonics
High-Speed Photonics

Specialty Fiber Arrays
Pigtailed Small Mode Filed Diameter Fiber Arrays

Fabrication Services
PLZT/PZT Deposition and Patterning

Dicing and Polishing



Pigtailed Small Mode Field Diameter Fiber Arrays

Recently there has been significant progress in integrated optical waveguide technologies including silicon photonics. Most of those state of arts waveguide technologies require small core fibers (small mode field diameter (MFD) fiber) or lensed fibers due to their small waveguide core sizes. For many practical device applications, non-lensed small core fibers are preferred since ease in the fiber alignment and robust fiber support.

EpiPhotonics has developed small core fiber array pigtails based on PLZT optical waveguide technology which utilized the small core fibers. The small core fiber array pigtails have minimum splicing loss (< 0.3 dB), pitch accuracy better than 0.5 um, and mode field diameters (MFD) ranging from 3.2 um to 7.7 um which match most advanced high-contrast waveguide technologies.


Item Specifications  Note
Mode Field Diameter 3.2 um, 4.0 um, 4.8 um, 6.8 um, 7.7 um  @ 1550 nm
Wavelength 1310 nm, 1550 nm  
Fiber Pitch 127.0 um, 250.0 um  
Pitch Accuracy ±0.5um  
Channel(s) 1, 2, 4, 8, 16  
 Polish Angle 0 deg, Angled  
 Array Material BK7
TEC: 7.5 x 10-6/K
TEC:5.0 x 10-7 /K
TEC:3.3 x 10-6 /KK
TEC: 2.6 x 10-6 /K
 Splicing Loss 3.2 um < 0.5 dB
4.0 um < 0.3 dB
4.8 um < 0.3 dB
6.8 um < 0.1 dB
7.7 um < 0.1 dB

  Connector SMF-LC, SMF-SC, SMF-FC  

(Please contact us for other specifications.)


  • High-delta silica waveguides
  • Silicon waveguides
  • Compound semiconductor waveguides

<Example: Thermal Expansion Coefficient (TEC)>

  • Silica:    5.0 x 10-7 /K
  • Silicon:   2.6 x 10-6 /K
  • InP:      4.5 x 10-6 /K

Ordering Information:

ID CH Pitch Material  Polish  MFD Length   Connector Polish 
EPF     1 127 um
250 um
 B (BK7)  0 deg 3.2 um
4.0 um
4.8 um
6.8 um
7.7 um

 100 cm    SC  PC
 2  P (Pyrex)  Angle   LC  APC  
 4 Q (Quartz)  FC 
 8  S (Si)

(Example: EPF-8-127-B-0-48-100-SC-PC)

Please contact us at for more details.