# Extending time-domain ptychography to generalized phase-only transfer functions

## TL;DR

This paper extends time-domain ptychography to include generalized phase-only transfer functions, introducing a new algorithm and demonstrating its robustness through simulations and experimental reconstruction of a supercontinuum pulse.

## Contribution

The paper introduces i$^2$PIE, a modified ptychographic algorithm that handles generalized spectral phase-only transfer functions, expanding the technique's capabilities.

## Key findings

- i$^2$PIE algorithm is robust across simulations.
- Successful experimental reconstruction of a supercontinuum pulse.
- Extension of ptychography to more general phase-only transfer functions.

## Abstract

We extend the time-domain ptychographic iterative engine to generalized spectral phase-only transfer functions. The modified algorithm, i$^2$PIE, is described and its robustness is demonstrated by different numeric simulations. The concept is experimentally verified by reconstruction of a complex supercontinuum pulse from an all normal dispersion fiber.