These are in chronological order.
1) This is a link to the initiating article by YKT, Optics Letters, Vol. 32, Issue 24, pp. 3558-3560 (2007),
http://www.opticsinfobase.org/abstract.cfm?uri=ol-32-24-3558"
Amplitude ambiguities in second-harmonic generation frequency-resolved optical gating
Abstract
"We construct field shapes with distinct amplitude profiles that have nearly identical second-harmonic generation frequency-resolved optical gating (SHG FROG) traces. Although such fields are not true mathematical ambiguities, they result in experimentally indistinguishable FROG traces. These fields are neither time-reversed copies nor pulselets with a mere relative phase difference, which are well known nontrivial ambiguities for SHG FROG. We also show that for certain example fields, second-order interferometric autocorrelation is more sensitive to the pulse shape than is SHG FROG."
"History
Original Manuscript: July 11, 2007
Manuscript Accepted: October 1, 2007
Published: December 14, 2007"
2) YTK correct some errors in the origin letter, Optics Letters, Vol. 33, Issue 23, pp. 2854-2854
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-23-2854"
Amplitude ambiguities in second-harmonic generation frequency-resolved optical gating: erratum
Abstract
"In our recent Letter [Opt. Lett.32, 3558 (2007)], the values of frog errors (Δe) reported for the examples in Fig. 1 and 3 are not consistent with the trace-normalized frog errors conventionally reported in literature."
"History
Original Manuscript: November 6, 2008
Published: November 25, 2008"
3) Trebino et al, published comment, Optics Letters, Vol. 34, Issue 17, pp. 2602-2602
Amplitude ambiguities in second-harmonic-generation frequency-resolved optical gating: comment
http://www.opticsinfobase.org/abstract.cfm?uri=ol-34-17-2602"
Abstract
"The authors of an earlier paper [Opt. Lett.32, 3558 (2007)] reported two “ambiguities” in second-harmonic-generation frequency-resolved optical gating (FROG). One ambiguity is simply wrong--a miscalculation. The other is well known and easily avoided in simple well-known FROG variations. Finally, the authors' main conclusion--that autocorrelation can be more sensitive to pulse variations than FROG--is also wrong."
"History
Original Manuscript: July 30, 2008
Manuscript Accepted: February 17, 2009
Revised Manuscript: February 16, 2009
Published: August 20, 2009"
4) YTK's response to Trebino et al, Optics Letters, Vol. 34, Issue 17, pp. 2603-2603
Amplitude ambiguities in second-harmonic-generation frequency-resolved optical gating: reply to comment
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-17-2603
Abstract
"The error calculations in our Erratum [Opt. Lett.33, 2854 (2008)] are correct and consistent with the numbers presented in the Comment [Opt. Lett.34, 2602 (2009)] on our Letter [Opt. Lett.32, 3558 (2007)]. However, we still find that the pulses in Fig. 3 pose a problem in correctly reconstructing the electric field shape."
"History
Original Manuscript: March 24, 2009
Manuscript Accepted: July 16, 2009
Revised Manuscript: July 15, 2009
Published: August 20, 2009"
Well, data with dates, by various claimants, supposedly. I've just now put this together, and haven't yet tried to discover who did what to whom, and when they done it to whos-it.