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KSOP-OPL - Optics and Photonics Lab

KSOP-OPL - Optics and Photonics Lab
Type: Laboratory
Semester: Summer Term / Winter Term

Room 1.18, Bldg. 30.10


Wed 14:00-18:00


Prof. Dr. Freude

and co-workers

SWS: 4
Lv-No.: 2309491

Please register for the KSOP-OPL via Campus Management System!


on appointment



Notes and Experiments

For KSOP students in the first two semesters, the following experiments are recommended:

Backscattering in Optical Fibers

Setup Backscattering in Optical Fibers

This module gives an introduction to optical time domain reflectometry. This scheme monitors fiber optical links for changes in transmission quality or locations of damages to the fiber by evaluating backscattered signals. It is an important routine employed by all major telecommunication companies to check the integrity of optical links.

Ring Resonator Filters

Ring Resonator
Ring Resonator Filter

Ring resonator waveguide structures are useful for adding or dropping information in networks switches. Their principle of operation is investigated with a microwave-frequency plug-and-play model (10 GHz).

Transmission and filtering properties are then experimentally verified with a network analyzer. Finally, finite-element-simulations are performed for visualization and a cross-check with theory.

Laser Diodes

Laser Diodes

Highest-data-rate laser diodes are key components in optical communications engineering. This experiment gives insights into the optical and electronic properties of laser diodes.

Optical Detectors

Optical Detectors

Semiconductor photodiodes of various types are evaluated for their effectivity in detecting weak light-pulses at optical communication wavelengths (800 nm to 1550 nm). They are important for error-free conversion of optical data back into the electrical domain.

BPM-Simulations of Integrated Waveguides


High refractive index contrast waveguides are used in integrated optical devices. Typical single mode planar and stripe waveguides are designed and characterized by beam propagation simulations with an industrial-standard high-frequency design-suite. This gives a graphic understanding of the actual transmission of light as an electromagnetic wave, extension of optical fields and of what is meant by “optical mode”.

KSOP OPL Experiments
  Name Date Size

KSOP students with profund knowledge in optics, (typically from the third semester on), are encouraged to choose their experiments out of the entire OKT-Laboratory.