We have measured the linear optical (V band) polarization in the nebula surrounding the Large Magellanic Cloud pulsar 0540-693 and find a positive result (integrated over the nebula) of P = 5.6% +/- 1.0%, oriented at an angle 79^deg^ +/- 5^deg^ east of north. Our technique corrects for but does not determine the interstellar polarization, which may be of order 2%. This result is similar to the integrated optical polarization of the Crab Nebula and is strong confirmation of a synchrotron origin for the 0540 nebular emission.
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Chanan et al. (1990) studied this question.