Quantum Well Gain Simulator

MQW simulates quantum mechanical behavior in atomically thin semiconductor layers, enabling engineers to accurately characterize band structure, gain and spontaneous emission in multi-quantum well structures. When designing lasers, SOAs, electro-absorption modulators or other gain-driven active photonic devices, MQW provides the deep physical insight necessary to ensure success.

MQW is a solver within Lumerical’s DEVICE Multiphysics Simulation Suite, the world’s first multiphysics suite purpose-built for photonics designers. The DEVICE suite enables designers to accurately model components where the complex interaction of optical, electronic, and thermal phenomena is critical to performance. As part of Finite Element IDE, designers can quickly analyze complex active devices while benefiting from Lumerical’s industry-leading usability, performance, and accuracy.

Key MQW applications include:

  • edge-emitting lasers
  • VCSELs
  • Electro-absorption modulators
  • SOAs

MQW Gain

  • Fully-coupled quantum mechanical band structure calculation using k.p method
  • Wavefunction and band diagram calculation
  • Gain and spontaneous emission
  • Incorporates temperature, field, and strain effects

Integrated Laser Simulation

  • Simulate and extract key parameters for TWLM
  • Build sophisticated laser models, incorporating tuning and external feedback effects
  • Characterize steady-state and transient laser performance, including threshold gain, lasing spectrum, SMSR, LI, turn-on, and modulation response
  • Requires INTERCONNECT and Laser Element Library licenses

Comprehensive Material Models

  • Includes material library with common III-V semiconductors
  • Automatically builds models for fractional semiconductor alloys (eg. InGaAsP)
  • Script accessible and customizable


Lumerical tools are interoperable through the Lumerical scripting language, Automation API, and Python and MATLAB APIs.

  • Build, run, and control simulations across multiple tools.
  • Use a single file to run optical, thermal, and electrical simulations before post-processing the data in MATLAB.

Want to know more about MQW?
Ready for a quote?

Contact Lumerical

Get started now with a free 30-day trial.

Evaluate for Free